Federal Register of Legislation - Australian Government

Primary content

National Measurement Regulations

SR 1961 No. 142 Regulations as amended, taking into account amendments up to SR 1986 No. 172
Registered 12 Apr 2010
Start Date 01 Jul 1986
End Date 11 Jan 1987
Date of repeal 31 Mar 1999
Repealed by National Measurement Regulations 1999

NATIONAL MEASUREMENT REGULATIONS
- In force under the National Measurement Act 1960
- Reprinted as at 31 August 1986 (HISTREG CHAP 55 #DATE 31:08:1986)

*1* The National Measurement Regulations (in force under the National Measurement Act 1960) as shown in this reprint comprise Statutory Rules 1961 No. 142 amended as indicated in the Tables below.
Table of Statutory Rules
------------------------------------------------------------------------------ --
Date of Application, saving
Year and notification in Date of or transitional
number Gazette commencement provisions
------------------------------------------------------------------------------ --
1961 No. 142 27 Nov 1961 27 Nov 1961 (a)
1963 No. 126 12 Dec 1963 12 Dec 1963 -
1964 No. 146 3 Dec 1964 3 Dec 1964 -
1965 No. 13 4 Feb 1965 4 Feb 1965 (b) -
1968 No. 150 5 Dec 1968 5 Dec 1968 -
1970 No. 40 2 Apr 1970 2 Apr 1970 -
1972 No. 62 11 May 1972 11 May 1972 -
133 10 Aug 1972 10 Aug 1972 -
160 5 Oct 1972 5 Oct 1972 -
1973 No. 68 29 Mar 1973 29 Mar 1973 -
253 13 Dec 1973 13 Dec 1973 -
1977 No. 150 8 Sept 1977 8 Sept 1977 -
1979 No. 65 27 Apr 1979 27 Apr 1979 -
1981 No. 195 14 July 1981 14 July 1981 -
1983 No. 64 24 May 1983 24 May 1983 -
1984 No. 195 10 Aug 1984 10 Aug 1984 -
231 12 Sept 1984 12 Sept 1984 -
1985 No. 315 28 Nov 1985 28 Nov 1985 -
1986 No. 172 30 June 1986 1 July 1986 -
----------------------------------------------------------------------------- (a) Part II (regulations 4-76) was expressed to take effect on 1 January
1964. That date was progressively extended to 1 January 1965 and 1 January
1966 by Statutory Rules 1963 No. 126 and 1964 No. 146 respectively.
(b) Regulation 1 of Statutory Rules 1965 No. 13 provides as follows:
"1. Regulations 4 to 17 (inclusive), and sub-regulations (1) to (4)
(inclusive) of regulation 23 of, and Parts I to IV (inclusive) of the Schedule
to, these Regulations shall take effect on the date on which Part II of the
Weights and Measures (National Standards) Regulations takes effect."
See paragraph (a) above.
Table of Amendments
ad. = added or inserted am. = amended rep. = repealed rs. = repealed and
substituted
------------------------------------------------------------------------------ -
Provision affected How affected
------------------------------------------------------------------------------ -
R. 1 ............... am. 1984 No. 231
R. 2 ............... am. 1965 No. 13; 1972 No. 62
rep. 1977 No. 150
R. 3 ............... am. 1965 No. 13; 1973 No. 253; 1977 No. 150;
1979 No. 65; 1984 No. 231
Part II (rr. 4-23, rep. 1979 No. 65
23A-23E, 24-76,
76A-76F)
Part II (rr. 4-68) . ad. 1979 No. 65
R. 4 ............... rs. 1963 No. 126; 1964 No. 146; 1979 No. 65
R. 5 ............... rs. 1979 No. 65; 1984 No. 195
Rr. 6, 7 ........... rs. 1979 No. 65
R. 8 ............... rs. 1979 No. 65
am. 1986 No. 172
Rr. 9, 10 .......... rs. 1979 No. 65
R. 11 .............. am. 1970 No. 40; 1977 No. 150
rs. 1979 No. 65
Rr. 12, 13 ......... am. 1977 No. 150
rs. 1979 No. 65
Rr. 14, 15 ......... rs. 1979 No. 65
R. 16 .............. am. 1965 No. 13
rs. 1979 No. 65
R. 17 .............. rs. 1965 No. 13; 1979 No. 65
am. 1986 No. 172
R. 18 .............. rs. 1965 No. 13; 1979 No. 65
R. 19 .............. rs. 1979 No. 65
R. 20 .............. am. 1965 No. 13
rs. 1979 No. 65
Rr. 21-23 .......... am. 1965 No. 13; 1977 No. 150
rs. 1979 No. 65
Div. 6A of Part II ad. 1972 No. 62
(rr. 23A-23E) rep. 1979 No. 65
Rr. 23A-23E ........ ad. 1972 No. 62
rep. 1979 No. 65
R. 24 .............. rs. 1979 No. 65
am. 1986 No. 172
R. 25 .............. am. 1968 No. 150
rs. 1979 No. 65
Rr. 26-28 .......... rs. 1979 No. 65
R. 29 .............. am. 1965 No. 13
rs. 1979 No. 65
R. 30 .............. rs. 1979 No. 65
am. 1986 No. 172
R. 31 .............. rs. 1979 No. 65
R. 32 .............. am. 1965 No. 13
rs. 1979 No. 65
am. 1985 No. 315; 1986 No. 172
R. 33 .............. rs. 1979 No. 65
R. 34 .............. rs. 1979 No. 65
am. 1985 No. 315; 1986 No. 172
R. 35 .............. rs. 1979 No. 65
R. 36 .............. am. 1977 No. 150
rs. 1979 No. 65
R. 37 .............. rs. 1979 No. 65
Rr. 38, 39 ......... am. 1977 No. 150
rs. 1979 No. 65
Rr. 40-43 .......... rs. 1979 No. 65
R. 44 .............. rs. 1965 No. 13; 1979 No. 65
Rr. 45-50 .......... rs. 1979 No. 65
R. 51 .............. rs. 1965 No. 13; 1979 No. 65
R. 52 .............. am. 1965 No. 13
rs. 1979 No. 65
Rr. 53-55 .......... rs. 1979 No. 65
R. 56 .............. rs. 1979 No. 65; 1983 No. 64
R. 57 .............. rs. 1979 No. 65
Rr. 58, 59 ......... rs. 1965 No. 13
am. 1968 No. 150
rs. 1979 No. 65
Rr. 60-63 .......... rs. 1979 No. 65
R. 64 .............. am. 1972 No. 133; 1973 No. 68
rs. 1979 No. 65
R. 65 .............. am. 1968 No. 150; 1970 No. 40
rs. 1979 No. 65
R. 66 .............. rs. 1979 No. 65
R. 67 .............. rs. 1968 No. 150; 1979 No. 65
R. 68 ............. rs. 1979 No. 65
Rr. 69, 70 .......... rep. 1979 No. 65
R. 71 ............... am. 1965 No. 13
rep. 1979 No. 65
Rr. 72-76 ........... rep. 1979 No. 65
Div. 28 of Part II ad. 1965 No. 13
(rr. 76A, 76B) rs. 1977 No. 150
rep. 1979 No. 65
Rr. 76A, 76B ....... ad. 1965 No. 13
rs. 1977 No. 150
rep. 1979 No. 65
Div. 29 of Part II ad. 1965 No. 13
(rr. 76C, 76D) rs. 1977 No. 150
rep. 1979 No. 65
Rr. 76C, 76D ........ ad. 1965 No. 13
rs. 1977 No. 150
rep. 1979 No. 65
Div. 30 of Part II ad. 1977 No 150
(rr. 76E, 76F) rep. 1979 No. 65
Rr. 76E, 76F ........ ad. 1977 No. 150
rep. 1979 No. 65
Div. 31 of Part II ad. 1983 No. 64
(rr. 69, 70)
R. 69 ............... ad. 1983 No. 64
am. 1984 No. 231
R. 70 ............... ad. 1983 No. 64
Div. 32 of Part II ad. 1983 No. 64
(rr. 71, 72)
R. 71 ............... ad. 1983 No. 64
am. 1984 No. 231
R. 72 ............... ad. 1983 No. 64
Div. 33 of Part II ad. 1985 No. 315
(rr. 73, 74)
Rr. 73, 74 .......... ad. 1985 No. 315
Div. 34 of Part II (r.ad. 1985 No. 315
75)
R. 75 ............... ad. 1985 No. 315
R. 77 ............... am. 1984 No. 231
R. 78 ............... rs. 1965 No. 13
am. 1984 No. 231
R. 78A .............. ad. 1965 No. 13
am. 1968 No. 150; 1984 No. 231
R. 79 ............... rs. 1965 No. 13
am. 1968 No. 150; 1984 No. 231
R. 80 ............... am. 1965 No. 13; 1968 No. 150; 1984 No. 231
R. 80A .............. ad. 1965 No. 13
am. 1968 No. 150
R. 81 ............... am. 1965 No. 13
rs. 1968 No. 150
am. 1984 No. 231
R. 82 ............... ad. 1965 No. 13
rs. 1968 No. 150
am. 1979 No. 65; 1984 No. 231
R. 83 ............... ad. 1968 No. 150
am. 1979 No. 65; 1984 No. 231
Part IV (r. 84) ..... ad. 1981 No. 195
R. 84 ............... ad. 1981 No. 195
am. 1983 No. 64
rs. 1986 No. 172
R. 85 ............... ad. 1986 No. 172
First Schedule ...... am. 1965 No. 13
rep. 1979 No. 65
Schedule 1 .......... ad. 1979 No. 65
Second Schedule ..... am. 1973 No. 68
rep. 1979 No. 65
Schedule 2 .......... ad. 1979 No. 65
am. 1983 No. 64
Third Schedule ...... rs. 1970 No. 40
am. 1973 Nos. 68 and 253; 1977 No. 150
rep. 1979 No. 65
Schedule 3 .......... ad. 1979 No. 65
am. 1986 No. 172
Fourth Schedule ..... am. 1977 No. 150
rep. 1979 No. 65
Schedule 4 .......... ad. 1979 No. 65
am. 1986 No. 172
Fifth Schedule ...... rs. 1965 No. 13
am. 1972 Nos. 133 and 160; 1977 No. 150
rep. 1979 No. 65
Schedule 5 .......... ad. 1979 No. 65
Sixth Schedule ...... am. 1965 No. 13; 1968 No. 150
rep. 1979 No. 65
Schedule 6 .......... ad. 1979 No. 65
Seventh Schedule .... am. 1965 No. 13; 1972 Nos. 133 and 160
rs. 1977 No. 150
rep. 1979 No. 65
Schedule 7 .......... ad. 1979 No. 65
Eighth Schedule ..... am. 1972 No. 133
rep. 1979 No. 65
Schedule 8 .......... ad. 1979 No. 65
rs. 1983 No. 64
Ninth Schedule ..... rep. 1979 No. 65
Schedule 9 .......... ad. 1979 No. 65
am. 1986 No. 172
Tenth Schedule ..... rs. 1965 No. 13
am. 1972 No. 133; 1973 No. 68
rep. 1979 No. 65
Schedule 10 ......... ad. 1979 No. 65
Eleventh Schedule ... rs. 1965 No. 13
am. 1972 No. 133
rep. 1979 No. 65
Schedule 11 ......... ad. 1979 No. 65
Twelfth Schedule .... am. 1972 No. 133
rep. 1979 No. 65
Schedule 12 ......... ad. 1979 No. 65
am. 1986 No. 172
Thirteenth Schedule . am. 1965 No. 13; 1968 No. 150
rs. 1972 No. 133
am. 1973 No. 68
rs. 1977 No. 150
rep. 1979 No. 65
Schedule 13 ......... ad. 1979 No. 65
am. 1983 No. 64; 1986 No. 172
Fourteenth Schedule . am. 1972 No. 133
rep. 1979 No. 65
Schedule 14 ......... ad. 1979 No. 65
am. 1983 No. 64; 1986 No. 172
Fifteenth Schedule .. rs. 1965 No. 13; 1972 No. 62
am. 1972 No. 133; 1973 No. 68; 1977 No. 150
rep. 1979 No. 65
Schedule 15 ......... ad. 1979 No. 65
Sixteenth Schedule .. am. 1965 No. 13
rs. 1972 No. 133
rep. 1979 No. 65
Schedule 16 ......... ad. 1979 No. 65
Seventeenth Schedule am. 1972 No. 133
rep. 1979 No. 65
Schedule 17 ......... ad. 1979 No. 65
Eighteenth Schedule . rep. 1979 No. 65
Schedule 18 ......... ad. 1979 No. 65
Nineteenth Schedule . am. 1972 No. 133
rep. 1979 No. 65
Schedule 19 ......... ad. 1979 No. 65
Twentieth Schedule .. am. 1973 No. 68
rep. 1979 No. 65
Schedule 20 ......... ad. 1979 No. 65
Twenty-first-Twenty-third Schedules
rep. 1979 No. 65
Schedules 21-23 ..... ad. 1979 No. 65
Twenty-fourth
Schedule ............ ad. 1965 No. 13
am. 1968 No. 150; 1977 No. 150
Renumbered Schedule
31 .................. 1979 No. 65
Schedule 24 ......... ad. 1979 No. 65
Twenty-fifth
Schedule ............ ad. 1968 No. 150
am. 1977 No. 150
Renumbered Schedule
32 .................. 1979 No. 65
Schedule 25 ......... ad. 1979 No. 65
Twenty-sixth
Schedule ............ ad. 1970 No. 40
rep. 1979 No. 65
Schedule 26 ......... ad. 1979 No. 65
Twenty-seventh
Schedule ............ ad. 1972 No. 62
rep. 1979 No. 65
Schedule 27 ......... ad. 1979 No. 65
Twenty-eighth-Thirtieth
Schedules ad. 1977 No. 150
rep. 1979 No. 65
Schedules 28-30 ..... ad. 1979 No. 65
Schedules 30A, 30B .. ad. 1983 No. 64
Schedule 30C ........ ad 1985 No. 315
Schedule 31
(previously
Twenty-fourth
Schedule) am. 1979 No. 65; 1984 No. 231; 1986 No. 172
Schedule 32
(previously
Twenty-fifth
Schedule) am. 1979 No. 65; 1984 No. 231; 1986 No. 172
Schedules 33-35 ..... ad. 1986 No. 172

NATIONAL MEASUREMENT REGULATIONS - TABLE OF PROVISIONS

TABLE

TABLE OF PROVISIONS

PART I-PRELIMINARY

Regulation

1. Citation

3. Interpretation

PART II-UNITS OF MEASUREMENT

Division 1-Length

4. Units of measurement of length

5. The metre

Division 2-Area

6.
Units of measurement of area

7.
The square metre

Division 3-Mass

8. Units of measurement of mass

9. The kilogram

Division 4-Volume

10. Units of measurement of volume

11. The cubic metre

Division 5-Density

12. Units of measurement of density

13. The kilogram per cubic metre

Division 6-Angle

14. Units of measurement of plane angle

15. The radian

16. The degree

17. The degree

18. Unit of measurement of solid angle

19. The steradian

Division 7-Time interval

20. Units of measurement of time interval

21. The second

Division 8-Frequency

22. Units of measurement of frequency

23. The hertz

Division 9-Velocity and speed

24. Units of measurement of velocity and speed

25. The metre per second

Division 10-Acceleration

26. Units of measurement of acceleration

27. The metre per second squared

Division 11-Force

28. Units of measurement of force

29. The newton

Division 12-Work and energy

30. Units of measurement of work and energy

31. The joule

Division 13-Power

32. Units of measurement of power

33. The watt

Division 14-Pressure

34. Units of measurement of pressure

35. The pascal

Division 15-Viscosity and kinematic viscosity

36. Units of measurement of viscosity and kinematic viscosity

37. The pascal second

38. The square metre per second

Division 16-Electric current

39. Units of measurement of electric current

40. The ampere

Division 17-Electric charge

41. Units of measurement of electric charge

42. The coulomb

Division 18-Potential difference and electromotive force

43. Units of measurement of potential difference and electromotive force

44. The volt

Division 19-Electrical resistance

45. Units of measurement of electrical resistance

46. The ohm

Division 20-Electrical conductance

47. Units of measurement of electrical conductance

48. The siemens

Division 21-Electrical capacitance

49. Units of measurement of electrical capacitance

50. The farad

Division 22-Electrical inductance

51. Units of measurement of electrical inductance

52. The henry

Division 23-Temperature

53. Units of measurement of temperature

54. The kelvin and the degree Celsius

Division 24-Luminous intensity

55. Units of measurement of luminous intensity

56. The candela

Division 25-Luminous flux

57. Units of measurement of luminous flux

58. The lumen

Division 26-Illuminance

59. Units of measurement of illuminance

60. The lux

Division 27-Luminance

61. Units of measurement of luminance

62. The candela per square metre

Division 28-Activity (radionuclides)

63. Units of measurement of activity

64. The becquerel

Division 29-Exposure (ionizing radiation)

65. Units of measurement of exposure

66. The coulomb per kilogram

Division 30-Absorbed dose, absorbed dose index, kerma and specific
energy imparted (ionizing radiation)

67. Units of measurement of absorbed dose, absorbed dose index, kerma and
specific energy imparted

68. The gray

Division 31-Magnetic flux

69. Units of measurement of magnetic flux

70. The weber

Division 32-Magnetic flux density

71. Units of measurement of magnetic flux density

72. The tesla

Division 33-Sound intensity

73. Units of measurement of sound intensity

74. The watt per square metre

Division 34-Sound power level, sound pressure level, sound intensity
level

75. The decibel

PART III-STANDARDS OF MEASUREMENT

77. Verifying authorities

78. Marks to be stamped on or affixed to standards of measurement

78A. Verification, &c., of standards of measurement referred to in section 8
of the Act

79. Verification, &c., of standards of measurement to which section 9 of
the Act applies

80. Verification, &c., of standards of measurement as subsidiary standards

80A. Certificates as evidence

81. Cancelling of certificates

82. Permissible variations in certain subsidiary standards of
measurement-Schedule 31

83. Permissible variations in certain subsidiary standards of
measurement-Schedule 32

PART IV-MISCELLANEOUS

84. Conversion factors

85. Additional legal units of measurement for use in futures contracts

THE SCHEDULES

SCHEDULE 1

Units of measurement of length

SCHEDULE 2

Units of measurement of area

SCHEDULE 3

Units of measurement of mass

SCHEDULE 4

Units of measurement of volume

SCHEDULE 5

Units of measurement of density

SCHEDULE 6

Units of measurement of plane angle

SCHEDULE 7

Units of measurement of time interval

SCHEDULE 8

Units of measurement of frequency

SCHEDULE 9

Units of measurement of velocity and speed

TABLE OF PROVISIONS-continued
SCHEDULE 10

Units of measurement of acceleration

SCHEDULE 11

Units of measurement of force

SCHEDULE 12

Units of measurement of work and energy

SCHEDULE 13

Units of measurement of power

SCHEDULE 14

Units of measurement of pressure

SCHEDULE 15

Units of measurement of viscosity and kinematic viscosity

SCHEDULE 16

Units of measurement of electric current

SCHEDULE 17

Units of measurement of electrical charge

SCHEDULE 18

Units of measurement of potential difference and electromotive force

SCHEDULE 19

Units of measurement of electrical resistance

SCHEDULE 20

Units of measurement of electrical conductance

SCHEDULE 21

Units of measurement of electrical capacitance

SCHEDULE 22

Units of measurement of electrical inductance

SCHEDULE 23

Units of measurement of temperature

SCHEDULE 24

Units of measurement of luminous intensity

TABLE OF PROVISIONS-continued
SCHEDULE 25

Units of measurement of luminous flux

SCHEDULE 26

Units of measurement of illuminance

SCHEDULE 27

Units of measurement of luminance

SCHEDULE 28

Units of measurement of activity (radionuclides)

SCHEDULE 29

Units of measurement of exposure (ionizing radiation)

SCHEDULE 30

Units of measurement of absorbed dose, absorbed dose index, kerma and specific
energy imparted (ionizing radiation)

SCHEDULE 30A

Units of measurement of magnetic flux

SCHEDULE 30B

Units of measurement of magnetic flux density

SCHEDULE 30C

Units of measurement of sound intensity

SCHEDULE 31

Permissible variation upon verification or reverification of certain subsidiary
standards of measurement

SCHEDULE 32

Permissible variation upon verification or reverification of certain subsidiary
standards of measurement that are constructed of iron

SCHEDULES 33 AND 34

Conversion factors

SCHEDULE 35

Additional legal units of measurement for use in futures contracts

NATIONAL MEASUREMENT REGULATIONS - PART I
PART I-PRELIMINARY

NATIONAL MEASUREMENT REGULATIONS - REG 1
Citation

1. These Regulations may be cited as the National Measurement Regulations.*1*

SEE NOTES TO FIRST ARTICLE OF THIS CHAPTER .

NATIONAL MEASUREMENT REGULATIONS - REG 3
Interpretation

3. (1) In these Regulations, unless the contrary intention appears-
"the Act" means the National Measurement Act 1960;
"time interval" means time interval not related to the calendar;
"verifying authority", in relation to the verification of a standard of measurement, means a person who is a verifying authority in relation to the verification of such a standard of measurement by virtue of an appointment under regulation 77.

(3) For the purposes of these Regulations, a symbol specified in Column 4 of a Schedule that is formed by the algebraic combination of symbols of other units may also be expressed using appropriate negative exponents.

NATIONAL MEASUREMENT REGULATIONS - PART II
PART II-UNITS OF MEASUREMENT

NATIONAL MEASUREMENT REGULATIONS - DIVISION 1
Division 1-Length

NATIONAL MEASUREMENT REGULATIONS - REG 4
Units of measurement of length

4. (1) The units of measurement of length are the units specified in Column 2 of Schedule 1.

(2) A unit of measurement specified in an item in Schedule 1 is related to the metre as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 1 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 5
The metre

5. The metre is the length of the path travelled by light in a vacuum during a time interval of 1/299 792 458 of a second.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 2
Division 2-Area

NATIONAL MEASUREMENT REGULATIONS - REG 6
Units of measurement of area

6. (1) The units of measurement of area are the units specified in Column 2 of Schedule 2.

(2) A unit of measurement specified in an item in Schedule 2 is related to the square metre as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 2 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 7
The square metre

7. The square metre is the area of a square each side of which is 1 metre in length.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 3
Division 3-Mass

NATIONAL MEASUREMENT REGULATIONS - REG 8
Units of measurement of mass

8. (1) The units of measurement of mass are the units specified in Column 2 of Schedule 3.

(2) A unit of measurement specified in an item in Schedule 3 is related to the kilogram as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 3 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

(4) The troy ounce, being a unit of measurement equal to 480(0.453 592 37)/7 000 of a kilogram, is an additional legal unit of measurement of mass for use-
(a) for the purpose of ascertaining the mass of precious metals; or
(b) for the purpose of contracts, dealings or other transactions made or entered into for any work, goods or other thing that is to be done, sold, carried or agreed for by measurement of the mass of precious metals, and may be referred to by the symbol "oz tr".

NATIONAL MEASUREMENT REGULATIONS - REG 9
The kilogram

9. The kilogram is the mass of the cylinder that-
(a) is deposited in the International Bureau of Weights and Measures; and
(b) was declared by the First General Conference on Weights and Measures held in Paris in the year 1889 to be the International Prototype Kilogram.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 4
Division 4-Volume

NATIONAL MEASUREMENT REGULATIONS - REG 10
Units of measurement of volume

10. (1) The units of measurement of volume are the units specified in Column 2 of Schedule 4.

(2) A unit of measurement specified in an item in Schedule 4 is related to the cubic metre as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 4 may be referred to by the symbol in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 11
The cubic metre

11. The cubic metre is the volume of a cube each side of which is 1 metre in length.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 5
Division 5-Density

NATIONAL MEASUREMENT REGULATIONS - REG 12
Units of measurement of density

12. (1) The units of measurement of density are the units specified in Column 2 of Schedule 5.

(2) A unit of measurement specified in an item in Schedule 5 is related to the kilogram per cubic metre as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 5 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 13
The kilogram per cubic metre

13. The kilogram per cubic metre is the density of a uniform substance a mass of 1 kilogram of which occupies a volume of 1 cubic metre.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 6
Division 6-Angle

NATIONAL MEASUREMENT REGULATIONS - REG 14
Units of measurement of plane angle

14. (1) The units of measurement of plane angle are the units specified in Column 2 of Schedule 6.

(2) A unit of measurement specified in an item in Schedule 6 is related to the radian as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 6 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 15
The radian

15. The radian is the plane angle between 2 radii of a circle that cut off on the circumference an arc equal in length to the radius.

NATIONAL MEASUREMENT REGULATIONS - REG 16
The degree

16. The degree is the plane angle between 2 radii of a circle that cut off on the circumference an arc that is 1/360 of the circumference.

NATIONAL MEASUREMENT REGULATIONS - REG 17
The degree

17. (1) For all legal purposes 1 degree shall be deemed to be equal
^
to--- radians, where n is the ratio of the circumference of a circle to the
180 diameter of that circle.

(2) For the purposes of sub-regulation (1) the ratio of the circumference of a circle to the diameter of that circle shall be deemed to be equal to 3.141 592 654.

NATIONAL MEASUREMENT REGULATIONS - REG 18
Unit of measurement of solid angle

18. (1) The unit of measurement of solid angle is the steradian.

(2) The steradian may be referred to by the symbol "sr".

NATIONAL MEASUREMENT REGULATIONS - REG 19
The steradian

19. The steradian is the solid angle that has its vertex in the centre of a sphere and cuts off an area of the surface of the sphere equal to that of a square with sides of length equal to the radius of the sphere.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 7
Division 7-Time interval

NATIONAL MEASUREMENT REGULATIONS - REG 20
Units of measurement of time interval

20. (1) The units of measurement of time interval are the units specified in Column 2 of Schedule 7.

(2) A unit of measurement specified in an item in Schedule 7 is related to the second as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 7 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 21
The second

21. The second is the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium-133 atom.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 8
Division 8-Frequency

NATIONAL MEASUREMENT REGULATIONS - REG 22
Units of measurement of frequency

22. (1) The units of measurement of frequency are the units specified in Column 2 of Schedule 8.

(2) A unit of measurement specified in an item in Schedule 8 is related to the hertz as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 8 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 23
The hertz

23. The hertz is the frequency of a regularly recurrent phenomenon that repeats itself once each second.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 9
Division 9-Velocity and speed

NATIONAL MEASUREMENT REGULATIONS - REG 24
Units of measurement of velocity and speed

24. (1) The units of measurement of velocity and speed are the units specified in Column 2 of Schedule 9.

(2) A unit of measurement specified in an item in Schedule 9 is related to the metre per second as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 9 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

(4) The foot per minute, being a unit of measurement equal to 0.304 8/60 of a metre per second, is an additional legal unit of measurement of velocity and speed for use-
(a) for the purpose of measuring vehicular vertical speed; or
(b) for the purpose of contracts, dealings or other transactions made or entered into for any work, goods or other thing that is to be done, sold, carried or agreed for by measurement of vehicular vertical speed, and may be referred to by the symbol "ft/min".

NATIONAL MEASUREMENT REGULATIONS - REG 25
The metre per second

25. The metre per second is the mean velocity or the mean speed of a point that moves its position rectilinearly a distance of 1 metre in 1 second.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 10
Division 10-Acceleration

NATIONAL MEASUREMENT REGULATIONS - REG 26
Units of measurement of acceleration

26. (1) The units of measurement of acceleration are the units specified in Column 2 of Schedule 10.

(2) A unit of measurement specified in an item in Schedule 10 is related to the metre per second squared as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 10 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 27
The metre per second squared

27. The metre per second squared is the mean acceleration of a point that changes its velocity by 1 metre per second in 1 second.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 11
Division 11-Force

NATIONAL MEASUREMENT REGULATIONS - REG 28
Units of measurement of force

28. (1) The units of measurement of force are the units specified in Column 2 of Schedule 11.

(2) A unit of measurement specified in an item in Schedule 11 is related to the newton as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 11 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 29
The newton

29. The newton is the force which when applied to a body having a mass of 1 kilogram causes an acceleration of 1 metre per second squared in the direction of application of the force.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 12
Division 12-Work and energy

NATIONAL MEASUREMENT REGULATIONS - REG 30
Units of measurement of work and energy

30. (1) The units of measurement of work and energy are the units specified in Column 2 of Schedule 12.

(2) A unit of measurement specified in an item in Schedule 12 is related to the joule as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 12 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

(4) The kilocalorie, being a unit of measurement equal to 4.186 8 x 10 3 joules, is an additional legal unit of measurement of work and energy for use-
(a) for the purpose of measuring food energy values; or
(b) for the purpose of contracts, dealings or other transactions made or entered into for any work, goods or other thing that is to be done, sold, carried or agreed for by measurement of food energy values, and may be referred to by the symbol "kcal".

NATIONAL MEASUREMENT REGULATIONS - REG 31
The joule

31. The joule is the work done or the energy expended when a force of 1 newton moves the point of application a distance of 1 metre in the direction of that force.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 13
Division 13-Power

NATIONAL MEASUREMENT REGULATIONS - REG 32
Units of measurement of power

32. (1) The units of measurement of power are the units specified in Column 2 of Schedule 13.

(2) A unit of measurement specified in an item in Schedule 13 is related to the watt as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 13 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

(4) In sub-regulation (1), "power" includes sound power.

(5) Horsepower, being a unit of measurement equal to 745.7 watts, is an additional legal unit of measurement of power for use-
(a) for the purpose of measuring engine ratings in the aviation industry;
(b) for the purpose of contracts, dealings or other transactions made or entered into for any work, goods or other thing that is to be done, sold, carried or agreed for by measurement of engine ratings in the aviation industry;
(c) for the purpose of measuring engine ratings in defence equipment; or
(d) for the purpose of contracts, dealings or other transactions made or entered into for any work, goods or other thing that is to be done, sold, carried or agreed for by measurement of engine ratings in defence equipment, and may be referred to by the symbol "hp".

(6) In this regulation, "defence equipment" means equipment used, or intended for use, by the Department of Defence.

NATIONAL MEASUREMENT REGULATIONS - REG 33
The watt

33. The watt is the power used when work is done or energy is expended at the rate of 1 joule per second.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 14
Division 14-Pressure

NATIONAL MEASUREMENT REGULATIONS - REG 34
Units of measurement of pressure

34. (1) The units of measurement of pressure are the units specified in Column 2 of Schedule 14.

(2) A unit of measurement specified in an item in Schedule 14 is related to the pascal as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 14 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

(4) In sub-regulation (1), "pressure" includes sound pressure.

(5) The millibar, being a unit of measurement equal to 100 pascals, is an additional legal unit of measurement for pressure for use-
(a) for the purpose of measuring air pressure in relation to aviation; or
(b) for the purpose of contracts, dealings or other transactions made or entered into for any work, goods or other thing that is to be done, sold, carried or agreed for by measurement of air pressure, and may be referred to by the symbols "mb or mbar".

(6) A millimetre of mercury, being a unit of measurement equal to 133.322 19 pascals, is an additional legal unit of measurement of pressure for use-
(a) for the purpose of measuring blood pressure; or
(b) for the purpose of contracts, dealings or other transactions made or entered into for any work, goods or other thing that is to be done, sold, carried or agreed for by measurement of blood pressure, and may be referred to by the symbol "mmHg".

NATIONAL MEASUREMENT REGULATIONS - REG 35
The pascal

35. The pascal is the pressure resulting from a force of 1 newton applied uniformly over an area of 1 square metre.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 15
Division 15-Viscosity and kinematic viscosity

NATIONAL MEASUREMENT REGULATIONS - REG 36
Units of measurement of viscosity and kinematic viscosity

36. (1) The units of measurement of viscosity and kinematic viscosity are the units specified in Column 2 of Schedule 15.

(2) A unit of measurement specified in an item in Schedule 15 is related to the pascal second or the square metre per second as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 15 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 37
The pascal second

37. The pascal second is the viscosity of a fluid for which there is a tangential force of 1 newton on 1 square metre of either of 2 infinite parallel planes 1 metre apart when-
(a) the space between those planes is filled with the fluid;
(b) one of the planes moves with a velocity of 1 metre per second in its own plane relative to the other; and
(c) the movement of the fluid is laminar.

NATIONAL MEASUREMENT REGULATIONS - REG 38
The square metre per second

38. The square metre per second is the kinematic viscosity of a fluid having a viscosity of 1 pascal second and a density of 1 kilogram per cubic metre.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 16
Division 16-Electric current

NATIONAL MEASUREMENT REGULATIONS - REG 39
Units of measurement of electric current

39. (1) The units of measurement of electric current are the units specified in Column 2 of Schedule 16.

(2) A unit of measurement specified in an item in Schedule 16 is related to the ampere as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 16 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 40
The ampere

40. The ampere is the unvarying electric current that, when flowing in each of 2 parallel straight conductors of infinite length of negligible cross-section and separated by a distance of 1 metre from each other in free space, produces between those conductors a force equal to 0.2 x 10-6 newtons per metre length of conductor.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 17
Division 17-Electric charge

NATIONAL MEASUREMENT REGULATIONS - REG 41
Units of measurement of electric charge

41. (1) The units of measurement of electric charge are the units specified in Column 2 of Schedule 17.

(2) A unit of measurement specified in an item in Schedule 17 is related to the coulomb as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 17 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 42
The coulomb

42. The coulomb is the quantity of electric charge that is transferred each second by an electric current of 1 ampere.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 18
Division 18-Potential difference and electromotive force

NATIONAL MEASUREMENT REGULATIONS - REG 43
Units of measurement of potential difference and electromotive force

43. (1) The units of measurement of potential difference and electromotive force are the units specified in Column 2 of Schedule 18.

(2) A unit of measurement specified in an item in Schedule 18 is related to the volt as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 18 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 44
The volt

44. The volt is the potential difference that exists between 2 points on a conductor carrying an unvarying electric current of 1 ampere when the power dissipated between those points is equal to 1 watt.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 19
Division 19-Electrical resistance

NATIONAL MEASUREMENT REGULATIONS - REG 45
Units of measurement of electrical resistance

45. (1) The units of measurement of electrical resistance are the units specified in Column 2 of Schedule 19.

(2) A unit of measurement specified in an item in Schedule 19 is related to the ohm as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 19 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 46
The ohm

46. The ohm is the electrical resistance between 2 points on a conductor that does not contain any source of electromotive force when a constant potential difference of 1 volt maintained between those points results in a current of 1 ampere in the conductor.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 20
Division 20-Electrical conductance

NATIONAL MEASUREMENT REGULATIONS - REG 47
Units of measurement of electrical conductance

47. (1) The units of measurement of electrical conductance are the units specified in Column 2 of Schedule 20.

(2) A unit of measurement specified in an item in Schedule 20 is related to the siemens as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 20 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 48
The siemens

48. The siemens is the electrical conductance of a conductor that has an electrical resistance of 1 ohm.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 21
Division 21-Electrical capacitance

NATIONAL MEASUREMENT REGULATIONS - REG 49
Units of measurement of electrical capacitance

49. (1) The units of measurement of electrical capacitance are the units specified in Column 2 of Schedule 21.

(2) A unit of measurement specified in an item in Schedule 21 is related to the farad as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 21 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 50
The farad

50. The farad is the electrical capacitance that exists between 2 conductors when the transfer of an electric charge of 1 coulomb from one to the other changes the potential difference between them by 1 volt.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 22
Division 22-Electrical inductance

NATIONAL MEASUREMENT REGULATIONS - REG 51
Units of measurement of electrical inductance

51. (1) The units of measurement of electrical inductance are the units specified in Column 2 of Schedule 22.

(2) A unit of measurement specified in an item in Schedule 22 is related to the henry as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 22 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 52
The henry

52. The henry is the electrical inductance of a closed circuit in which an electromotive force of 1 volt is produced when the electric current that traverses the circuit varies uniformly at the rate of 1 ampere per second.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 23
Division 23-Temperature

NATIONAL MEASUREMENT REGULATIONS - REG 53
Units of measurement of temperature

53. (1) The units of measurement of temperature are the units specified in Column 2 of Schedule 23.

(2) A unit of measurement specified in an item in Schedule 23 is related to the kelvin as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 23 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 54
The kelvin and the degree Celsius

54. (1) The kelvin is 1/273.16 of the thermodynamic temperature of the triple point of water.

(2) The degree Celsius is the unit of measurement of Celsius temperature and is equal in magnitude to the kelvin.

(3) The numerical value in degrees Celsius of a thermodynamic temperature is related to the numerical value of that temperature in kelvins in accordance with the equation t = T-273.15, where-
t is the numerical value of that temperature in degrees Celsius;
and
T is the numerical value of that temperature in kelvins.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 24
Division 24-Luminous intensity

NATIONAL MEASUREMENT REGULATIONS - REG 55
Units of measurement of luminous intensity

55. (1) The units of measurement of luminous intensity are the units specified in Column 2 of Schedule 24.

(2) A unit of measurement specified in an item in Schedule 24 is related to the candela as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 24 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 56
The candela

56. The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of the frequency 540 x 10 12 hertz
1
and has a radiant intensity in that direction of --- watt per steradian.
683

NATIONAL MEASUREMENT REGULATIONS - DIVISION 25
Division 25-Luminous flux

NATIONAL MEASUREMENT REGULATIONS - REG 57
Units of measurement of luminous flux

57. (1) The units of measurement of luminous flux are the units specified in Column 2 of Schedule 25.

(2) A unit of measurement specified in an item in Schedule 25 is related to the lumen as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 25 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 58
The lumen

58. The lumen is the luminous flux emitted into a solid angle of 1 steradian by an isotropic point source having a luminous intensity of 1 candela.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 26
Division 26-Illuminance

NATIONAL MEASUREMENT REGULATIONS - REG 59
Units of measurement of illuminance

59. (1) The units of measurement of illuminance are the units specified in Column 2 of Schedule 26.

(2) A unit of measurement specified in an item in Schedule 26 is related to the lux as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 26 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 60
The lux

60. The lux is the illuminance produced at the surface of a sphere having a radius of 1 metre by a point source that-
(a) is situated at its centre; and
(b) has a luminous intensity of 1 candela in all directions.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 27
Division 27-Luminance

NATIONAL MEASUREMENT REGULATIONS - REG 61
Units of measurement of luminance

61. (1) The units of measurement of luminance are the units specified in Column 2 of Schedule 27.

(2) A unit of measurement specified in an item in Schedule 27 is related to the candela per square metre as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 27 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 62
The candela per square metre

62. The candela per square metre is the luminance of a surface that has a uniform luminous intensity of 1 candela per square metre of projected area.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 28
Division 28-Activity (radionuclides)

NATIONAL MEASUREMENT REGULATIONS - REG 63
Units of measurement of activity

63. (1) The units of measurement of activity of a radionuclide are the units specified in Column 2 of Schedule 28.

(2) A unit of measurement specified in an item in Schedule 28 is related to the becquerel as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 28 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 64
The becquerel

64. The becquerel is the activity of a radionuclide that is undergoing 1 transformation per second.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 29
Division 29-Exposure (ionizing radiation)

NATIONAL MEASUREMENT REGULATIONS - REG 65
Units of measurement of exposure

65. (1) The units of measurement of exposure to ionizing radiation are the units specified in Column 2 of Schedule 29.

(2) A unit of measurement specified in an item in Schedule 29 is related to the coulomb per kilogram as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 29 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 66
The coulomb per kilogram

66. The coulomb per kilogram is the exposure to ionizing radiation in respect of which the sum of the electric charges of all the ions of the same sign produced in air equals 1 coulomb per kilogram of the mass of a volume of air when all the negatrons and positrons liberated by the radiation in that volume of air are completely stopped in air.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 30
Division 30-Absorbed dose, absorbed dose index, kerma and specific energy

NATIONAL MEASUREMENT REGULATIONS - REG 67
Units of measurement of absorbed dose, absorbed dose index, kerma and
specific
energy imparted

67. (1) The units of measurement of absorbed dose, absorbed dose index, kerma and specific energy imparted are the units specified in Column 2 of Schedule 30.

(2) A unit of measurement specified in an item in Schedule 30 is related to the gray as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 30 may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 68
The gray

68. The gray is the absorbed dose, absorbed dose index, kerma or specific energy imparted when 1 joule is imparted to 1 kilogram of irradiated matter.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 31
Division 31-Magnetic flux

NATIONAL MEASUREMENT REGULATIONS - REG 69
Units of measurement of magnetic flux

69. (1) The units of measurement of magnetic flux are the units specified in Column 2 of Schedule 30A.

(2) A unit of measurement specified in an item in Schedule 30A is related to the weber as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 30A may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 70
The weber

70. The weber is the magnetic flux that, linking a circuit of one turn, produces in that circuit an electromotive force of 1 volt if the magnetic flux is reduced to zero at a uniform rate in 1 second.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 32
Division 32-Magnetic flux density

NATIONAL MEASUREMENT REGULATIONS - REG 71
Units of measurement of magnetic flux density

71. (1) The unit of measurement of magnetic flux density are the units specified in Column 2 of Schedule 30B.

(2) A unit of measurement specified in an item in Schedule 30B is related to the tesla as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 30B may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 72
The tesla

72. The tesla is the magnetic flux density that results if a magnetic flux of 1 weber is uniformly distributed over a plane 1 square metre in area, the direction of the magnetic flux density being perpendicular to that plane.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 33
Division 33-Sound intensity

NATIONAL MEASUREMENT REGULATIONS - REG 73
Units of measurement of sound intensity

73. (1) The units of measurement of sound intensity are the units specified in Column 2 of Schedule 30C.

(2) A unit of measurement specified in an item in Schedule 30C is related to the watt per square metre as specified in Column 3 of that Schedule in that item.

(3) A unit of measurement specified in an item in Schedule 30C may be referred to by the symbol specified in Column 4 of that Schedule in that item.

NATIONAL MEASUREMENT REGULATIONS - REG 74
The watt per square metre

74. The watt per square metre is the sound intensity when a sound power of one watt is propagated through an area of one square metre normal to the direction of propagation.

NATIONAL MEASUREMENT REGULATIONS - DIVISION 34
Division 34-Sound power level, sound pressure level, sound intensity level

NATIONAL MEASUREMENT REGULATIONS - REG 75
The decibel

75. (1) The decibel is the unit of measurement of-
(a) sound power level;
(b) sound pressure level; and
(c) sound intensity level.

(2) In measuring sound power level in decibels, the number of decibels is the number equal to 10 times the logarithm to the base 10 of the ratio of the sound power in the particular case expressed in watts to a reference sound power of 10-12 watts.

(3) In measuring sound pressure level in decibels, the number of decibels is the number equal to 20 times the logarithm to the base 10 of the ratio of the root-mean-square sound pressure in the particular case expressed in pascals to a reference sound pressure of 2 x 10-5 pascals.

(4) In measuring sound intensity level in decibels, the number of decibels is the number equal to 10 times the logarithm to the base 10 of the ratio of the sound intensity in the particular case expressed in watts per square metre to a reference sound intensity of 10-12 watts per square metre.

(5) The decibel may be referred to by the symbol "dB".

NATIONAL MEASUREMENT REGULATIONS - PART III
PART III-STANDARDS OF MEASUREMENT

NATIONAL MEASUREMENT REGULATIONS - REG 77
Verifying authorities

77. (1) The Commission may, by instrument in writing, appoint a person (including a body corporate) to be a verifying authority in relation to the verification of standards of measurement as reference standards of measurement.

(2) An appointment under this regulation may be an appointment of the person for the time being holding, or performing the duties of, a specified office of-
(a) the Commonwealth, a State or a Territory; or
(b) a body corporate.

(3) An appointment under this regulation may be in relation to the verification of standards of measurement generally or the verification of the standards of measurement included in a particular class or particular classes of standards of measurement.

NATIONAL MEASUREMENT REGULATIONS - REG 78
Marks to be stamped on or affixed to standards of measurement

78. (1) Subject to this regulation, a standard of measurement shall not be verified under these Regulations unless-
(a) a distinguishing mark has been stamped or otherwise legibly and permanently affixed on or to it before it is verified; or
(b) there is stamped or otherwise legibly marked on or affixed to it, immediately after it has been verified or reverified, a mark indicating the date on which it was verified and, if such is the case, that it is to be deemed to be of a value equal to its denomination in accordance with regulation 82.

(2) Sub-regulation (1) does not apply in relation to a standard of measurement if it is impracticable, by reason of its size or nature, so to stamp or affix a mark referred to in paragraph (1) (a) or (b) on or to it.

NATIONAL MEASUREMENT REGULATIONS - REG 78A
Verification, &c., of standards of measurement referred to in section 8 of
the
Act

78A. (1) Where a standard of measurement referred to in section 8 of the Act is verified-
(a) in the case of a verification carried out by the Organization-an officer or employee of the Organization authorized by the Organization in writing to sign and issue certificates under this regulation; or
(b) in any other case-any person authorized by the Organization in writing to sign and issue certificates under this regulation, may sign and issue such a certificate with respect to the verification of the standard of measurement.

(2) There shall be stated in every such certificate-
(a) the date on which the standard of measurement was verified;
(b) the accuracy with which the standard was verified;
(c) a description of the mark (if any) appearing on the standard as referred to in regulation 78;
(d) the value, in terms of an Australian legal unit of measurement or of Australian legal units of measurement, of the standard as ascertained on the date referred to in paragraph (a); and
(e) that the standard is an Australian primary standard of measurement or an Australian secondary standard of measurement, as the case may be.

(3) For the purposes of paragraph (2) (b), the accuracy of the standard of measurement shall be ascertained and expressed in a manner authorized by a determination of the Organization for the purposes of this regulation or, if more than one manner is authorized in such a determination, in one of the manners so authorized.

NATIONAL MEASUREMENT REGULATIONS - REG 79
Verification, &c., of standards of measurement to which section 9 of the Act
applies

79. (1) Where a standard of measurement to which section 9 of the Act applies is verified in accordance with that section-
(a) in the case of a verification carried out by the Organization-an officer or employee of the Organization authorized by the Organization in writing to sign and issue certificates under this regulation; or
(b) in any other case-any person authorized by the Organization in writing to sign and issue certificates under this regulation, may sign and issue such a certificate with respect to the verification of the standard of measurement.

(2) There shall be stated in every such certificate-
(a) the date on which the standard of measurement was verified;
(b) the accuracy with which the standard was verified;
(c) a description of the mark (if any) appearing on the standard as referred to in regulation 78;
(d) the value, in terms of an Australian legal unit of measurement or of Australian legal units of measurement, of the standard as ascertained on the date referred to in paragraph (a);
(e) the period specified under sub-section 9 (3) of the Act as the period within which the standard is to be verified again; and
(f) that the standard was verified in accordance with section 9 of the Act.

(3) For the purposes of paragraph (2) (b), the accuracy of the standard of measurement shall be ascertained and expressed in a manner authorized by a determination of the Organization for the purposes of this regulation or, if more than one manner is authorized in such a determination, in one of the manners so authorized.

NATIONAL MEASUREMENT REGULATIONS - REG 80
Verification, &c., of standards of measurement as subsidiary standards

80. (1) The verification of a standard of measurement as a reference standard of measurement for the purposes of the Act shall be carried out-
(a) by the Organization;
(b) by a verifying authority being a body corporate; or
(c) by, or under the supervision of, a verifying authority not being a body corporate, in accordance with this regulation.

(2) The verification shall be carried out in a manner that, having regard to the nature of the standard to be verified, is appropriate for the purpose.

(3) Where a standard of measurement is verified as a reference standard of measurement by the Organization, the Organization or an officer or employee of the Organization authorized by the Organization in writing for the purposes of this sub-regulation shall specify the period within which the standard is to be verified again, and the standard shall be verified again within that period.

(4) Where a standard of measurement is verified as a reference standard of measurement by, or under the supervision of, a verifying authority, the standard shall be verified again within such period as the Commission or a person authorized by the Commission in writing for the purposes of this sub-regulation directs.

(5) A direction by the Commission or a person authorized by the Commission, under sub-regulation (4) may relate to a particular standard of measurement or to all the standards of measurement included in a particular class of standards of measurement.

(6) Where a standard of measurement is verified in accordance with this regulation-
(a) if the verification is carried out by the Organization or a verifying authority being a body corporate-an officer or employee of the Organization or of the verifying authority authorized in writing by the Organization or the verifying authority, as the case may be, to sign and issue certificates under this regulation; and
(b) if the verification is carried out by, or under the supervision of, a verifying authority not being a body corporate-
(i) the verifying authority; or
(ii) if the Commission empowers the verifying authority to authorize in
writing a person or persons to sign and issue certificates under this regulation, a person so authorized, may sign and issue a certificate under this regulation.

(7) There shall be stated in every such certificate-
(a) the date on which the standard of measurement was verified;
(b) the accuracy with which the standard was verified;
(c) a description of the mark (if any) appearing on the standard as referred to in regulation 78;
(d) the value, in terms of an Australian legal unit of measurement or of Australian legal units of measurement, of the standard as ascertained on the date referred to in paragraph (a);
(f) the period within which the standard is to be verified again; and
(g) that the standard was verified as a reference standard of measurement-
(i) by the Organization; or
(ii) by, or under the supervision of, a specified verifying authority,
in accordance with these Regulations.

(8) For the purposes of paragraph (7) (b), the accuracy of the standard of measurement shall be ascertained and expressed in a manner authorized by a determination of the Commission for the purposes of this regulation or, if more than one manner is authorized in such a determination, in one of the manners so authorized.

(9) For the purposes of sub-regulation (8), the Commission may, from time to time, determine the manner or manners in which the accuracy of a reference standard of measurement shall be ascertained and expressed.

(10) Notice of a determination made under sub-regulation (8) shall be given, by or on behalf of the Commission, to all verifying authorities that have been appointed verifying authorities in relation to a standard of measurement to which the determination relates.

NATIONAL MEASUREMENT REGULATIONS - REG 80A
Certificates as evidence

80A. (1) A certificate issued under this Part is evidence of the matters stated in it.

(2) A document purporting to be such a certificate may be received in evidence in any court (whether exercising federal jurisdiction or not) or in proceedings before a person authorized by a law of a State or Territory of the Commonwealth, or by consent of parties, to hear, receive and examine evidence.

(3) A certificate purporting to be a certificate under this Part or a document purporting to be a document cancelling a certificate under this Part shall, unless the contrary is proved, be deemed to have been signed and issued by the person by whom it purports to have been signed and issued and, unless the contrary is proved, the person by whom it purports to have been signed and issued shall be deemed to be a person authorized by, or in pursuance of, this Part to sign and issue the certificate or document.

NATIONAL MEASUREMENT REGULATIONS - REG 81
Cancelling of certificates

81. (1) A certificate issued under regulation 78A or 79 may be cancelled at any time by the Organization or by a person authorized in writing to do so by the Organization.

(2) A certificate issued under regulation 80 may be cancelled at any time-
(a) in the case of a certificate issued by an officer or employee of the Organization-by the Organization or by a person authorized in writing to do so by the Organization; or
(b) in the case of a certificate issued by a verifying authority, an officer or employee of a verifying authority or a person empowered by a verifying authority under paragraph 80 (6) (b) and issue certificates-
(i) by the Commission;
(ii) by the verifying authority; or
(iii) by a person authorized in writing by the Commission to cancel a
certificate of such a kind.

(3) Where a certificate is cancelled in pursuance of this regulation, the body or person cancelling the certificate shall sign and issue a document stating that the certificate has been cancelled or, if the certificate is in the possession of the body or person, endorse on it the word "Cancelled" and the date of cancellation.

NATIONAL MEASUREMENT REGULATIONS - REG 82
Permissible variations in certain subsidiary standards of
measurement-Schedule
31

82. (1) A reference standard of measurement of a denomination referred to in Column 1 of Schedule 31 that on verification is found not to be greater or less than its denomination by an amount exceeding the amount of permissible variation specified in Column 2 of that Schedule opposite to the reference to its denomination in Column 1 shall be deemed to be of a value equal to its denomination unless the certificate issued under regulation 80 in respect of that verification states otherwise.

(2) A reference standard of measurement referred to in sub-regulation (1) shall not be deemed, in pursuance of that sub-regulation, to be of a value equal to its denomination unless the variation of the reference standard of measurement from its denomination is determined to an accuracy that is equal to, or better than, one-third of the permissible variation relevant to that standard of measurement.

NATIONAL MEASUREMENT REGULATIONS - REG 83
Permissible variations in certain subsidiary standards of
measurement-Schedule
32

83. (1) A reference standard of measurement of a denomination referred to in Column 1 of Schedule 32 that on verification is found not to be greater or less than its denomination by an amount exceeding the amount of permissible variation specified in Column 2 of that Schedule opposite to the reference to its denomination in Column 1 shall be deemed to be of a value equal to its denomination unless the certificate issued under regulation 80 in respect of that verification states otherwise.

(2) A reference standard of measurement referred to in sub-regulation (1) shall not be deemed, in pursuance of that sub-regulation, to be of a value equal to its denomination unless the variation of the reference standard of measurement from its denomination is determined to an accuracy that is equal to, or better than, one-third of the permissible variation relevant to that standard of measurement provided that the variation is so determined to an accuracy that is not better than that set out in Column 3 of Schedule 32 opposite to the reference to the denomination of that standard of measurement in the first column of that Schedule.

NATIONAL MEASUREMENT REGULATIONS - PART IV
PART IV- MISCELLANEOUS

NATIONAL MEASUREMENT REGULATIONS - REG 84
Conversion factors

84. (1) For the purposes of section 11 of the Act, the conversion factor specified in Column 4 of an item in Schedule 33 is prescribed for the purpose of converting a measurement of a physical quantity expressed in terms of the Australian legal unit of measurement of that physical quantity specified in Column 2 of that item to a measurement expressed in terms of the Australian legal unit of measurement specified in Column 3 of that item.

(2) For the purposes of section 11 of the Act, the conversion factor specified in Column 4 of an item in Schedule 34 is prescribed for the purpose of converting a measurement of a physical quantity expressed in terms of a unit of measurement (not being an Australian legal unit of measurement) of that physical quantity specified in Column 2 of that item to a measurement expressed in terms of the Australian legal unit of measurement specified in Column 3 of that item.

NATIONAL MEASUREMENT REGULATIONS - REG 85
Additional legal units of measurement for use in futures contracts

85. (1) The unit of measurement specified in Column 2 of an item in Schedule 35, being a unit of measurement of a physical quantity specified in Column 3 of the item, is an additional legal unit of measurement for use for the purpose of futures contracts.

(2) An additional legal unit of measurement specified in Column 2 of an item in Schedule 35 is related to the Australian legal unit of measurement specified in Column 4 of that item as specified in Column 5 of that item.

(3) In this regulation "futures contract" has the same meaning as that expression has in the Futures Industry Act 1986.

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 1

SCH

THE SCHEDULES
SCHEDULE 1
Regulation 4
UNITS OF MEASUREMENT OF LENGTH
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Length in
Item Name of unit metres Symbol
------------------------------------------------------------------------------ --
1 nautical mile ................. 1852 n mile
2 kilometre ..................... 10 3 km
3 hectometre .................... 10 2 hm
4 dekametre ..................... 10 dam
5 metre ......................... 1 m
6 decimetre ..................... 10-1 dm
7 centimetre .................... 10-2 cm
8 millimetre .................... 10-3 mm
9 micrometre or micron .......... 10-6 um
10 nanometre ..................... 10-9 nm
11 mile .......................... 1609.344 . .
12 chain ......................... 22 (0.9144) ch
13 yard .......................... 0.9144 yd
14 foot .......................... 1/3 (0.9144) ft or '
15 link .......................... 22/100 (0.9144) lk
16 inch .......................... 1/36 (0.9144) in or "
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 2

SCH

SCHEDULE 2
Regulation 6
UNITS OF MEASUREMENT OF AREA
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Area in
Item Name of unit square metres Symbol
------------------------------------------------------------------------------ --
1 square kilometre .............. 10 6 km 2
2 hectare ....................... 10 4 ha
3 square metre .................. 1 m 2
4 square decimetre .............. 10-2 dm 2
5 square centimetre ............. 10-4 cm 2
6 square millimetre ............. 10-6 mm 2
7 square yard ................... (0.9144) 2 sq yd or yd 2
8 square foot ................... 1/9 (0.9144) 2 sq ft or ft 2
9 square inch ................... 1/1296
(0.9144) 2 sq in or in 2
10 acre .......................... 4 840 (0.9144) 2 ac
11 rood .......................... 1 210 (0.9144) 2 rd
12 perch ......................... 30.25 (0.9144) 2 p
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 3

SCH

SCHEDULE 3
Regulation 8
UNITS OF MEASUREMENT OF MASS
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Mass in
Item Name of unit kilograms Symbol
------------------------------------------------------------------------------ --
1 megatonne ..................... 10 9 Mt
2 kilotonne ..................... 10 6 kt
3 tonne ........................ 10 3 t
4 megagram ...................... 10 3 Mg
5 kilogram ..................... 1 kg
6 hectogram ..................... 10-1 . .
7 dekagram ...................... 10-2 . .
8 gram .......................... 10-3 g
9 decigram ...................... 10-4 dg
10 centigram ..................... 10-5 cg
11 milligram ..................... 10-6 mg
12 microgram ..................... 10-9 ug
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 4

SCH

SCHEDULE 4
Regulation 10
UNITS OF MEASUREMENT OF VOLUME
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Volume in
Item Name of unit cubic metres Symbol
------------------------------------------------------------------------------ --
1 cubic kilometre ............... 10 9 km 3
2 teralitre ..................... 10 9 TL or Tl
3 gigalitre ..................... 10 6 GL or Gl
4 megalitre ..................... 10 3 ML or Ml
5 cubic metre ................... 1 m 3
6 kilolitre ..................... 1 kL or kl
7 hectolitre .................... 10-1 hL or hl
8 dekalitre ..................... 10-2 daL or dal
9 cubic decimetre ............... 10-3 dm 3
10 litre ......................... 10-3 L or l
11 decilitre ..................... 10-4 dL or dl
12 centilitre ................... 10 5 cL or cl
13 cubic centimetre .............. 10-6 cm 3
14 millilitre ................... 10-6 mL or ml
15 microlitre .................... 10-9 uL or ul
16 cubic millimetre .............. 10-9 mm 3
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 5

SCH

SCHEDULE 5
Regulation 12
UNITS OF MEASUREMENT OF DENSITY
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Density in
kilograms per
Item Name of unit cubic metre Symbol
------------------------------------------------------------------------------ --
1 gram per cubic centimetre ..... 10 3 g/cm 3
2 tonne per cubic metre ........ 10 3 t/m 3
3 kilogram per cubic metre ...... 1 kg/m 3
4 kilogram per hectolitre ....... 10 kg/hL or kg/hl
5 kilogram per litre ............ 10 3 kg/L or kg/l
6 gram per millilitre ........... 10 3 g/mL or g/ml
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 6

SCH

SCHEDULE 6
Regulation 14
UNITS OF MEASUREMENT OF PLANE ANGLE
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Item Name of unit Angle in radians Symbol
------------------------------------------------------------------------------ --
1 radian ........................ 1 rad
2 milliradian ................... 10-3 mrad
3 microradian ................... 10-6 urad
4 degree ........................ ^/180 ^
5 minute ........................ 1/60 x ^/180 '
6 second ........................ 1/3600 x ^/180 "
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 7

SCH

SCHEDULE 7
Regulation 20
UNITS OF MEASUREMENT OF TIME INTERVAL
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Time interval in
Item Name of unit seconds Symbol
------------------------------------------------------------------------------ --
1 day ........................... 86 400 d
2 hour .......................... 3 600 h
3 minute ........................ 60 min
4 second ........................ 1 s
5 millisecond ................... 10-3 ms
6 microsecond ................... 10-6 us
7 nanosecond ................... 10-9 ns
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 8

SCH

SCHEDULE 8
Regulation 22
UNITS OF MEASUREMENT OF FREQUENCY
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Item Name of unit Frequency in hertz Symbol
------------------------------------------------------------------------------ --
1 terahertz ..................... 10 12 THz
2 gigahertz ..................... 10 9 GHz
3 megahertz ..................... 10 6 MHz
4 kilohertz ..................... 10 3 kHz
5 hertz ......................... 1 Hz
6 millihertz .................... 10-3 mHz
7 revolution per minute ......... 1/60 r/min
8 revolution per second ......... 1 r/s
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 9

SCH

SCHEDULE 9
Regulation 24
UNITS OF MEASUREMENT OF VELOCITY AND SPEED
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Velocity or
speed in
Item Name of unit metres per second Symbol
------------------------------------------------------------------------------ --
1 metre per second .............. 1 m/s
2 knot .......................... 463/900 kn
3 kilometre per hour ............ 5/18 km/h
4 centimetre per second ......... 10-2 cm/s
5 millimetre per second ......... 10-3 mm/s
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 10

SCH

SCHEDULE 10
Regulation 26
UNITS OF MEASUREMENT OF ACCELERATION
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Acceleration in
metres per
Item Name of unit second squared Symbol
------------------------------------------------------------------------------ --
1 metre per second squared ...... 1 m/s 2
2 centimetre per second squared . 10-2 cm/s 2
3 millimetre per second squared . 10-3 mm/s 2
4 micrometre per second squared . 10-6 um/s 2
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 11

SCH

SCHEDULE 11
Regulation 28
UNITS OF MEASUREMENT OF FORCE
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Item Name of unit Force in newtons Symbol
------------------------------------------------------------------------------ --
1 meganewton .................... 10 6 MN
2 kilonewton .................... 10 3 kN
3 newton ........................ 1 N
4 millinewton ................... 10-3 mN
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 12

SCH

SCHEDULE 12
Regulation 30
UNITS OF MEASUREMENT OF WORK AND ENERGY
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Work or
Item Name of unit energy in joules Symbol
------------------------------------------------------------------------------ --
1 exajoule ...................... 10 18 EJ
2 petajoule ..................... 10 15 PJ
3 terajoule ..................... 10 12 TJ
4 gigajoule ..................... 10 9 GJ
5 megajoule ..................... 10 6 MJ
6 kilojoule ..................... 10 3 kJ
7 joule ......................... 1 J
8 gigawatt hour ................. 3.6x10 12 GW.h
9 megawatt hour ................. 3.6x10 9 MW.h
10 kilowatt hour ................. 3.6x10 6 kW.h
11 watt hour ..................... 3.6x10 3 W.h
15 gigaelectronvolt .............. 1.602 189 2x10-10 GeV
16 megaelectronvolt .............. 1.602 189 2x10-13 MeV
17 kiloelectronvolt .............. 1.602 189 2x10-16 keV
18 electronvolt .................. 1.602 189 2x10-19 eV
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 13

SCH

SCHEDULE 13
Regulation 32
UNITS OF MEASUREMENT OF POWER
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Item Name of unit Power in watts Symbol
------------------------------------------------------------------------------ --
1 gigawatt ...................... 10 9 GW
2 megawatt ...................... 10 6 MW
3 kilowatt ...................... 10 3 kW
4 watt .......................... 1 W
5 milliwatt ..................... 10-3 mW
6 microwatt ..................... 10-6 uW
7 nanowatt ...................... 10-9 nW
8 picowatt ..................... 10-12 pW
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 14

SCH

SCHEDULE 14
Regulation 34
UNITS OF MEASUREMENT OF PRESSURE
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Item Name of unit Pressure in pascals Symbol
------------------------------------------------------------------------------ --
1 gigapascal .................... 10 9 GPa
2 megapascal ................... 10 6 MPa
3 kilopascal .................... 10 3 kPa
4 pascal ........................ 1 Pa
5 millipascal ................... 10-3 mPa
6 micropascal ................... 10-6 uPa
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 15

SCH

SCHEDULE 15
Regulation 36
UNITS OF MEASUREMENT OF VISCOSITY AND KINEMATIC VISCOSITY
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Viscosity in
pascal seconds or
kinematic viscosity
in
square metres per
Item Name of unit second Symbol
------------------------------------------------------------------------------ --
viscosity pascal seconds
1 pascal second ................. 1 Pa.s
2 millipascal second ............ 10-3 mPa.s
3 poise ......................... 10-1 P
4 centipoise .................... 10-3 cP
kinematic viscosity square metres per
second
5 square metre per second ....... 1 m 2/s
6 square millimetre per second .. 10-6 mm 2/s
7 stokes ....................... 10-4 St
8 centistokes ................... 10-6 cSt
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 16

SCH

SCHEDULE 16
Regulation 39
UNITS OF MEASUREMENT OF ELECTRIC CURRENT
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Electric current in
Item Name of unit amperes Symbol
------------------------------------------------------------------------------ --
1 kiloampere ................... 10 3 kA
2 ampere ....................... 1 A
3 milliampere .................. 10-3 mA
4 microampere .................. 10-6 uA
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 17

SCH

SCHEDULE 17
Regulation 41
UNITS OF MEASUREMENT OF ELECTRICAL CHARGE
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Electric charge in
Item Name of unit coulombs Symbol
------------------------------------------------------------------------------ --
1 coulomb ...................... 1 C
2 ampere hour .................. 3600 A.h
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 18

SCH

SCHEDULE 18
Regulation 43
UNITS OF MEASUREMENT OF POTENTIAL DIFFERENCE AND
ELECTROMOTIVE FORCE
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Potential difference or
electromotive force
Item Name of unit in volts Symbol
------------------------------------------------------------------------------ --
1 gigavolt ..................... 10 9 GV
2 megavolt ..................... 10 6 MV
3 kilovolt ..................... 10 3 kV
4 volt ......................... 1 V
5 millivolt .................... 10-3 mV
6 microvolt .................... 10-6 uV
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 19

SCH

SCHEDULE 19
Regulation 45
UNITS OF MEASUREMENT OF ELECTRICAL RESISTANCE
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Electrical resistance in
Item Name of unit ohms Symbol
------------------------------------------------------------------------------ --
1 gigohm ....................... 10 9 Gn
2 megohm ....................... 10 6 Mn
3 kilohm ....................... 10 3 kn
4 ohm .......................... 1 n
5 microhm ...................... 10-6 un
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 20

SCH

SCHEDULE 20
Regulation 47
UNITS OF MEASUREMENT OF ELECTRICAL CONDUCTANCE
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Electrical conductance in
Item Name of unit siemens Symbol
------------------------------------------------------------------------------ --
1 siemens ...................... 1 S
2 millisiemens ................. 10- 3 mS
3 microsiemens ................. 10- 6 uS
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 21

SCH

SCHEDULE 21
Regulation 49
UNITS OF MEASUREMENT OF ELECTRICAL CAPACITANCE
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Electrical capacitance in
Item Name of unit farads Symbol
------------------------------------------------------------------------------ --
1 farad ........................ 1 F
2 microfarad ................... 10-6 uF
3 nanofarad .................... 10-9 nF
4 picofarad .................... 10-12 pF
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 22

SCH

SCHEDULE 22
Regulation 51
UNITS OF MEASUREMENT OF ELECTRICAL INDUCTANCE
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Electrical inductance in
Item Name of unit henrys Symbol
------------------------------------------------------------------------------ --
1 henry ........................ 1 H
2 millihenry ................... 10-3 mH
3 microhenry ................... 10-6 uH
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 23

SCH

SCHEDULE 23
Regulation 53
UNITS OF MEASUREMENT OF TEMPERATURE
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Temperature interval
Item Name of unit in kelvins Symbol
------------------------------------------------------------------------------ --
1 kelvin ....................... 1 K
2 millikelvin .................. 0.001 mK
3 degree Celsius ............... 1 oC
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 24

SCH

SCHEDULE 24
Regulation 55
UNITS OF MEASUREMENT OF LUMINOUS INTENSITY
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Luminous intensity
Item Name of unit in candelas Symbol
------------------------------------------------------------------------------ --
1 megacandela .................. 10 6 Mcd
2 kilocandela .................. 10 3 kcd
3 candela ...................... 1 cd
4 millicandela ................. 10-3 mcd
5 microcandela ................. 10-6 ucd
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 25

SCH

SCHEDULE 25
Regulation 57
UNITS OF MEASUREMENT OF LUMINOUS FLUX
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Luminous flux in
Item Name of unit lumens Symbol
------------------------------------------------------------------------------ --
1 megalumen .................... 10 6 Mlm
2 kilolumen .................... 10 3 klm
3 lumen ........................ 1 lm
4 millilumen ................... 10-3 mlm
5 microlumen ................... 10-6 ulm
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 26

SCH

SCHEDULE 26
Regulation 59
UNITS OF MEASUREMENT OF ILLUMINANCE
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Illuminance
Item Name of unit in lux Symbol
------------------------------------------------------------------------------ --
1 megalux ...................... 10 6 Mlx
2 kilolux ...................... 10 3 klx
3 lux .......................... 1 lx
4 millilux ..................... 10-3 mlx
5 microlux ..................... 10-6 ulx
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 27

SCH

SCHEDULE 27
Regulation 61
UNITS OF MEASUREMENT OF LUMINANCE
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Luminance in
candelas per
Item Name of unit square metre Symbol
------------------------------------------------------------------------------ --
1 megacandela per square metre . 10 6 Mcd/m2
2 kilocandela per square metre . 10 3 kcd/m2
3 candela per square metre ..... 1 cd/m2
4 millicandela per square metre 10-3 mcd/m2
5 microcandela per square metre 10-6 ucd/m2
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 28

SCH

SCHEDULE 28
Regulation 63
UNITS OF MEASUREMENT OF ACTIVITY (RADIONUCLIDES)
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Activity in
Item Name of unit becquerels Symbol
------------------------------------------------------------------------------ --
1 petabecquerel ................ 10 15 PBq
2 terabecquerel ................ 10 12 TBq
3 gigabecquerel ................ 10 9 GBq
4 megabecquerel ................ 10 6 MBq
5 kilobecquerel ................ 10 3 kBq
6 becquerel .................... 1 Bq
7 millibecquerel ............... 10-3 mBq
8 microbecquerel ............... 10-6 uBq
9 megacurie .................... 3.7 x 10 16 MCi
10 kilocurie .................... 3.7 x 10 13 kCi
11 curie ........................ 3.7 x 10 10 uCi
12 millicurie ................... 3.7 x 10 7 mCi
13 microcurie ................... 3.7 x 10 4 Ci
14 nanocurie .................... 3.7 x 10 nCi
15 picocurie .................... 3.7 x 10-2 pCi
16 femtocurie ................... 3.7 x 10-5 fCi
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 29

SCH

SCHEDULE 29
Regulation 65
UNITS OF MEASUREMENT OF EXPOSURE (IONIZING RADIATION)
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Exposure in
coulombs per
Item Name of unit kilogram Symbol
------------------------------------------------------------------------------ --
1 kilocoulomb per kilogram ..... 10 3 kC/kg
2 coulomb per kilogram ......... 1 C/kg
3 millicoulomb per kilogram .... 10-3 mC/kg
4 microcoulomb per kilogram .... 10-6 uC/kg
5 nanacoulomb per kilogram ..... 10-9 nC/kg
6 megaroentgen ................. 0.258 x 10 3 MR
7 kiloroentgen ................. 0.258 kR
8 roentgen ..................... 0.258 x 10-3 R
9 milliroentgen ................ 0.258 x 10-6 mR
10 microroentgen ................ 0.258 x 10-9 uR
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 30

SCH

SCHEDULE 30
Regulation 67
UNITS OF MEASUREMENT OF ABSORBED DOSE, ABSORBED DOSE INDEX, KERMA AND
SPECIFIC ENERGY IMPARTED (IONIZING RADIATION)
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Absorbed dose,
absorbed dose index,
kerma or specific
energy imparted in
Item Name of unit grays Symbol
------------------------------------------------------------------------------ --
1 megagray ...................... 10 6 MGy
2 kilogray ...................... 10 3 kGy
3 gray .......................... 1 Gy
4 milligray .................... 10-3 mGy
5 microgray ..................... 10-6 uGy
6 nanogray ...................... 10-9 nGy
7 picogray ...................... 10-12 pGy
8 gigarad ....................... 10 7 Grad
9 megarad ....................... 10 4 Mrad
10 kilorad ....................... 10 krad
11 rad .......................... 10-2 rad
12 millirad ...................... 10-5 mrad
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 30A

SCH

SCHEDULE 30A
Regulation 69
UNITS OF MEASUREMENT OF MAGNETIC FLUX
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Magnetic flux
Item Name of unit in webers Symbol
------------------------------------------------------------------------------ --
1 weber ........................ 1 Wb
2 milliweber .................... 10-3 mWb
3 microweber .................... 10-6 uWb
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 30B

SCH

SCHEDULE 30B
Regulation 71
UNITS OF MEASUREMENT OF MAGNETIC FLUX DENSITY
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Magnetic flux
Item Name of unit density in teslas Symbol
------------------------------------------------------------------------------ --
1 tesla ......................... 1 T
2 millitesla .................... 10-3 mT
3 microtesla .................... 10-6 uT
4 nanotesla ..................... 10-9 nT
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 30C

SCH

SCHEDULE 30C
Regulation 73
UNITS OF MEASUREMENT OF SOUND INTENSITY
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Sound intensity
in watts per
Item Name of unit square metre Symbol
------------------------------------------------------------------------------ --
1 kilowatt per square metre ..... 10 3 kW/m2
2 watt per square metre ........ 1 W/m2
3 milliwatt per square metre .... 10-3 mW/m2
4 microwatt per square metre ... 10-6 uW/m2
5 nanowatt per square metre ..... 10-9 nW/m2
6 picowatt per square metre ..... 10-12 pW/m2
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 31

SCH

SCHEDULE 31
Regulation 82
PERMISSIBLE VARIATION UPON VERIFICATION OR REVERIFICATION OF CERTAIN
SUBSIDIARY STANDARDS OF MEASUREMENT
------------------------------------------------------------------------------ --
Column 1 Column 2
Denomination of Standard Permissible Variation
------------------------------------------------------------------------------ --
A. Standards of Measurement of Length expressed in terms of the Metre or Units
related to the Metre
in Schedule 1
Permissible variation in millimetres
Denominations exceeding 32 metres ..... One-tenth of the denomination of the
standard in metres
Denominations exceeding 15 metres but
not exceeding 32 metres Five-hundredths of the denomination of
the standard in metres
Denominations exceeding 2 millimetres
but not exceeding 15 metres Two-tenths of the square root of the
denomination of the standard in metres
Denominations not exceeding 2
millimetres ........................... 0.01
B. Standards of Measurement of Length expressed in terms of the Yard or Units
related to the Yard
in Schedule 1
Permissible variation in inches
Denominations exceeding 35 yards ...... Four-thousandths of the denomination of
the standard in yards
Denominations exceeding 50 feet but not
exceeding 35 yards Two-thousandths of the denomination of
the standard in yards
Denominations exceeding 0.07 inches but
not exceeding 50 feet Five-thousandths of the square root of
the denomination of the standard in feet
Denominations not exceeding 0.07 inches
...................................... 0.0004
C. Standards of Measurement of Mass that are not constructed of iron, expressed
in terms of the Kilogram or Units related to the Kilogram in Schedule 3
Permissible variation in milligrams
Denominations exceeding 10 kilograms .. Eight times the denomination of the
standard in kilograms
Denominations exceeding 1 milligram but
not exceeding 10 kilograms Eight-tenths of the square root of the
denomination of the standard in grams
Denominations not exceeding 1
milligram ............................. 0.025
F. Standards of Measurement of Mass expressed in terms of the Metric Carat
Permissible variation in milligrams
Denominations exceeding 0.02 metric
carat ................................. Eight-hundredths of the square root of
the denomination of the standard in
metric carats
Denominations not exceeding 0.02 metric
carat ................................. 0.01
G. Standards of Measurement of Mass expressed in terms of the troy ounce
Permissible variation in milligrams
Denominations exceeding 300 troy
ounces ................................ Twenty six hundredths of the
denomination in troy ounces
Denominations exceeding five troy ounces
but not exceeding 300 troy ounces Nineteen hundredths of the square root
of four hundred and eighty times the
denomination in troy ounces
Denominations not exceeding five troy
ounces ................................ 0.02
H. Standards of Measurement of Volume expressed in terms of the Cubic Metre or
Units related to
the Cubic Metre in Schedule 4
Permissible variation in cubic
centimetres
Denominations exceeding 0.05 cubic metre
Six hundred times the denomination of
the standard in cubic metres
Denominations exceeding 0.5 cubic
centimetre but not exceeding 0.05 cubic
metre Two-hundredths of the cube root of the
square of the denomination of the
standard in cubic centimetres
Denominations not exceeding 0.5 cubic
centimetre 0.01
L. Standards of Measurment of Area expressed in terms of the Square Metre or
Units related to the
Square Metre in Schedule 2
Permissible variation in square metres
Denominations exceeding 0.6 square metre
...................................... Three-thousandths of the denomination of
the standard in square metres
Denominations not exceeding 0.6 square
metre ................................ 0.0018
M. Standards of Measurement of Area expressed in terms of the Square Yard or
Units related to the
Square Yard in Schedule 2
Permissible variation in square feet
Denominations exceeding 6 square feet . Three-thousandths of the denomination of
the standard in square feet
Denominations not exceeding 6 square
feet .................................. 0.018
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 32

SCH

SCHEDULE 32
Regulation 83
PERMISSIBLE VARIATION UPON VERIFICATION OR REVERIFICATION OF
CERTAIN SUBSIDIARY STANDARDS OF MEASUREMENT THAT ARE
CONSTRUCTED OF IRON
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3
Limit of accuracy of
Denomination of Standard Permissible variation verification
------------------------------------------------------------------------------ --
A. Standards of Measurement of Mass that are constructed of iron, expressed in
terms of the
Kilogram or Units related to the Kilogram in Schedule 3
Permissible variation
in grams Limit of accuracy of
verification in grams
Denominations exceeding 25
kilograms Seven-hundredths of the
denomination of the
standard in kilograms Seven-thousandths of the
denomination of the standard
in kilograms
Denominations exceeding 1
kilogram but not exceeding
25 kilograms Thirty-five-hundredths of
the square root of the
denomination of the
standard in kilograms Thirty-five-thousandths of
the square root of the
denomination of the standard
in kilograms
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 33

SCH

SCHEDULE 33
Regulation 84
CONVERSION FACTORS
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Unit of Unit of
Item measurement measurement Factor
------------------------------------------------------------------------------ --
Length
1. mile metre 1 609.344
2. chain metre 22(0.914 4)
3. yard metre 0.914 4
4. link metre 22(0.914 4)/100
Area
5. square yard square metre (0.914 4)2
6. square foot square metre (0.914 4)2/9
7. square inch square metre (0.914 4)2/1 296
8. acre square metre 4 840 (0.914 4)2
9. rood square metre 1 210 (0.914 4)2
10. perch square metre 30.25 (0.914 4)2
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 34

SCH

SCHEDULE 34
Regulation 84
CONVERSION FACTORS
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4
Unit of Unit of Conversion
Item measurement measurement Factor
------------------------------------------------------------------------------ --
Mass
1. ton kilogram 2 240 (0.453 592 37)
2. short ton (sh
tn) kilogram 2 000 (0.453 592 37)
3. hundredweight
(cwt) kilogram 112 (0.453 592 37)
4. quarter (qr) kilogram 28 (0.453 592 37)
5. stone kilogram 14 (0.453 592 37)
6. pound (lb) kilogram 0.453 592 37
7. ounce (oz) kilogram (0.453 592 37)/16
8. dram (dr) kilogram (0.453 592 37)/256
9. grain (gr) kilogram (0.453 592 37)/7 000
10. slug kilogram 32.174 (0.453 592 37)
11. troy ounce (oz
tr) kilogram 480 (0.453 592 37)/7 000
12. pennyweight
(dwt) kilogram 24 (0.453 592 37)/7 000
Volume
13. cubic yard (cu
yd or yd3) cubic metre (0.914 4)3
14. cubic foot (cu
ft or ft3) cubic metre (0.914 4)3/27
15. cubic inch (cu
in or in3) cubic metre (0.914 4)3/46 656
16. gallon (gal) cubic metre 4.546 09 x 10-3
17. quart (qt) cubic metre (4.546 09 x 10-3)/4
18. pint (pt) cubic metre (4.546 09 x 10-3)/8
19. gill cubic metre (4.546 09 x 10-3)/32
20. fluid ounce (fl
oz) cubic metre (4.546 09 x 10-3)/160
21. fluid drachm (fl
dr) cubic metre (4.546 09 x 10-3)/1 280
22. minim (min) cubic metre (4.546 09 x 10-3)/76 800
Velocity and Speed
23. mile per hour
(mile/h or mph) metre per second 1 609.344/3 600
24. mile per hour kilometre per hour 1.609 344
25. foot per minute
(ft/min) metre per second 0.304 8/60
Work and Energy
26. kilocalorie
(kcal) joule 4.186 8 X 10 3
27. calorie (cal) joule 4.186 8
28. British thermal
unit (Btu) joule 1 055.056
Power
29. horsepower (hp) watt 745.7
Pressure
30. millimetre of
mercury (mm Hg) pascal 133.322 19
31. millibar (mb or
mbar) pascal 100
------------------------------------------------------------------------------ --

NATIONAL MEASUREMENT REGULATIONS - SCHEDULE 35

SCH

SCHEDULE 35
Regulation 85
ADDITIONAL LEGAL UNITS OF MEASUREMENT FOR USE IN FUTURES CONTRACTS
------------------------------------------------------------------------------ --
Column 1 Column 2 Column 3 Column 4 Column 5
Additional
legal unit of Physical Australian
measurement Quantity legal unit
of Relationship to Australian
Item measurement legal unit of measurementn
------------------------------------------------------------------------------ --
1. ton mass kilogram 2 240 (0.453 592 37)
2. short ton mass kilogram 2 000 (0.453 592 37)
3. hundredweight
mass kilogram 112 (0.453 592 37)
4. quarter mass kilogram 28 (0.453 592 37)
5. stone mass kilogram 14 (0.453 592 37)
6. pound mass kilogram 0.453 592 37
7. ounce mass kilogram (0.453 592 37)/16
8. dram mass kilogram (0.453 592 37)/256
9. grain mass kilogram (0.453 592 37)/7000
10. slug mass kilogram 32.174 (0.453 592 37)
11. troy ounce mass kilogram 480 (0.453 592 37)/7 000
12. pennyweight mass kilogram 24 (0.453 592 37)/7 000
13. cubic yard volume cubic metre (0.914 4)3
14. cubic foot volume cubic metre (0.914 4)3/27
15. cubic inch volume cubic metre (0.914 4)3/466 56
16. gallon volume cubic metre 4.546 09 x 10-3
17. quart volume cubic metre (4.546 09 x 10-3)/4
18. pint volume cubic metre (4.546 09 x 10-3)/8
19. gill volume cubic metre (4.546 09 x 10-3)/32
20. fluid ounce volume cubic metre (4.546 09 x 10-3)/160
21. fluid drachm volume cubic metre (4.546 09 x 10-3)/1 280
22. minim volume cubic metre (4.546 09 x 10-3)76 800
23 mile per hour
velocity and
speed metres per
second 1 609.344/3 600
24. foot per
minute velocity and
speed metres per
second 0.304 8/60
25. kilocalorie work and
energy joule 4.186 8 x 10 3
26. calorie work and
energy joule 4.186 8
27. British
thermal unit work and
energy joule 1 055.056
28. horsepower power watt 745.7
29. millibar pressure pascal 100
30. millimetre of
mercury pressure pascal 133.322 19
------------------------------------------------------------------------------ --