Statutory Rules
1977 No. 150
REGULATIONS UNDER THE WEIGHTS AND MEASURES (NATIONAL STANDARDS) ACT 1960.*
I, THE GOVERNORGENERAL of the Commonwealth of Australia, acting with the advice of the Federal Executive Council, hereby make the following Regulations under the Weights and Measures (National Standards) Act 1960.
Dated this sixth day of September, 1977.
John R. Kerr
GovernorGeneral.
By His Excellency’s Command,
Minister of State for Science.
Amendments of the Weights and Measures (National Standards) Regulations†
Parts.
1. Regulation 2 of the Weights and Measures (National Standards) Regulations is repealed.
Interpretation.
2. Regulation 3 of the Weights and Measures (National Standards) Regulations is amended—
(a) by omitting the definition of “ the Act ” in subregulation (1) and substituting the following definition:—
“ ‘the Act’ means the Weights and Measures (National Standards) Act 1960;”;
(b) by omitting from the definition of “verifying authority” in subregulation (1) the words “ of these Regulations ”; and
(c) by omitting subregulation (2).
Units specified in the Third Schedule.
3. Regulation 11 of the Weights and Measures (National Standards) Regulations is amended by omitting from subregulation (1) the word “ kilogramme ” and substituting the word “ kilogram ”.
The kilogram and the pound.
4. Regulation 12 of the Weights and Measures (National Standards) Regulations is amended—
(a) by omitting from subregulation (1) the word “ kilogramme ” (wherever occurring) and substituting the word “ kilogram ”;
* Notified in the Commonwealth of Australia Gazette on 8 September 1977.
† Statutory Rules 1961, No. 142 as amended by Statutory Rules 1963, No. 126; 1964, No. 146; 1965, No. 13; 1968, No. 150; 1970, No. 40; 1972, Nos. 62, 133 and 160; and 1973, Nos. 68 and 253.
12714/77 Cat. No. ?—Recommended retail price 20c 12/6.7.1977
(b) by omitting from paragraph (b) of subregulation (1) the word “ Kilogramme ” and substituting the word “ Kilogram ”; and
(c) by omitting from subregulation (2) the word “ kilogramme ” and substituting the word “ kilogram ”.
Units specified in the Fourth Schedule.
5. Regulation 13 of the Weights and Measures (National Standards) Regulations is amended by omitting from subregulation (1) the word “ gramme ” and substituting the word “ gram ”.
Units of measurement of density.
6. Regulation 21 of the Weights and Measures. (National Standards) Regulations is amended—
(a) by omitting from subregulation (1) the word “ kilogramme ” and substituting the word “ kilogram ”; and
(b) by inserting in subregulation (2), after the word “ abbreviation ”, the words “ or symbol ”.
The kilogram per cubic metre, pound per cubic foot, &c.
7. Regulation 22 of the Weights and Measures (National Standards) Regulations is amended by omitting from subregulation (1) the word “ kilogramme ” (wherever occurring) and substituting the word “ kilogram ”.
Conversion factors.
8. Regulation 23 of the Weights and Measures (National Standards) Regulations is amended by omitting from paragraph (b) the word “ kilogrammes ” and substituting the word “ kilograms ”.
The newton and the poundal.
9. Regulation 36 of the Weights and Measures (National Standards) Regulations is amended by omitting from subregulation (1) the word “ kilogramme ” and substituting the word “ kilogram ”.
Units of measurement of work and energy.
10. Regulation 38 of the Weights and Measures (National Standards) Regulations is amended by omitting from subregulation (3) the words “ (if any) ” and substituting the words “ or symbol ”.
The joule, footpoundal, &c.
11. Regulation 39 of the Weights and Measures (National Standards) Regulations is amended by omitting from subregulation (3) the word “ kilogramme ” and substituting the word “ kilogram ”.
12. Divisions 28 and 29 of Part II of the Weights and Measures (National Standards) Regulations are repealed and the following Divisions substituted:—
“ Division 28—Activity (Radionuclides)
Units of measurement of the activity of radionuclides.
“ 76a (1) The units of measurement of activity of a radionuclide are the units specified in the second column of the Twentyeighth Schedule and are related to the becquerel as respectively specified in the third column of that Schedule.
“ (2) A unit of measurement of activity specified in the second column of the Twentyeighth Schedule may he referred to by the symbol specified in the fourth column of that Schedule opposite the reference to that unit in the second column.
The becquerel.
“ 76b. The becquerel is the activity of a radionuclide that is undergoing one disintegration per second.
“ Division 29—Exposure (Ionizing Radiation)
Units of measurement of exposure to ionizing radiation.
“ 76c. (1) The units of measurement of exposure to ionizing radiation are the units specified in the second column of the Twentyninth Schedule and are related to the coulomb per kilogram as respectively specified in the third column of that Schedule.
“ (2) A unit of measurement of exposure specified in the second column of the Twentyninth Schedule may be referred to by the symbol specified in the fourth column of that Schedule opposite to the reference to that unit in the second column.
The coulomb per kilogram
“ 76d. 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 one sign produced in air equals one 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.
“ Division 30—Absorbed Dose and any other Physical Quantity expressed in terms of Energy per Unit Mass (Ionizing Radiation)
Units of measurement of absorbed dose and any other physical quantity expressed in terms of energy per unit mass relating to ionizing radiation
“ 76e. (1) The units of measurement of—
(a) absorbed dose; and
(b) any other physical quantity involving ionizing radiation expressed in terms of energy per unit mass,
are the units specified in the second column of the Thirtieth Schedule and are related to the gray as respectively specified in the third column of that Schedule.
“ (2) A unit of measurement of absorbed dose of ionizing radiation or of any other physical quantity expressed in terms of energy per unit mass relating to ionizing radiation, being a unit specified in the second column of the Thirtieth Schedule, may be referred to by the symbol specified in the fourth column of that Schedule opposite to the reference to that unit in the second column.
The gray.
“ 76f. The gray is the absorbed dose when one joule is imparted to one kilogram of irradiated matter.”.
Third Schedule.
13. The Third Schedule to the Weights and Measures (National Standards) Regulations is amended by omitting the part of the table headed “ Kilograms ” and substituting the following part:
 Kilograms 

“ Megatonne ........................  109  Mt 
Kilotonne .........................  106  kt 
Tonne ...........................  103  t 
Megagram ........................  103  Mg 
Kilogram .........................  1  kg 
Hectogram ........................  10t  .. 
Dekagram .........................  102  .. 
Gram ............................  103  g 
Decigram .........................  104  dg 
Centigram .........................  105  eg 
Milligram .........................  106  mg 
Microgram ........................  109  µg .”. 
Fourth Schedule
14. The Fourth Schedule to the Weights and Measures (National Standards) Regulations is amended—
(a) by omitting from the heading to the second column the word
“ Grammes ” and substituting the word “Grams”;
(b) by omitting the heading—
“ Grammes ”,
and substituting the heading—
“ Grams ”;
Fifth Schedule.
15. The Fifth Schedule to the Weights and Measures (National Standards) Regulations is amended by omitting that part of the table headed “ Cubic Metres ” and substituting the following part:—
 Cubic Metres 

“ Teralitre ..........................  109  TL or Tl 
Gigalitre ..........................  106  GLor Gl 
Megalitre .........................  103  ML or Ml 
Cubic metre .......................  1  m3 
Kilolitre ..........................  1  kL or kl 
Hectolitre .........................  101  hL or hl 
Dekalitre .........................  102  .. 
Cubic decimetre .....................  103  dm3 
Litre ............................  103  L or l 
Decilitre ..........................  104  dL or dl 
Centilitre .........................  105  cL or cl 
Cubic centimetre ....................  106  cm3 
Millilitre ..........................  106  mL or ml 
Microlitre .........................  109  µL or µl 
Cubic millimetre ....................  109  mm3 ”. 
Seventh Schedule.
16. The Seventh Schedule to the Weights and Measures (National Standards) Regulations is repealed and the following Schedule substituted:—
SEVENTH SCHEDULE Regulation 21
UNITS OF MEASUREMENT OF DENSITY
First column  Second column  Third column 
Name of unit  Density in Kilograms per Cubic Metre, Pounds per Cubic Foot or Pounds per Gallon  Abbreviation or symbol 
Kilograms per cubic metre  
Gram per cubic centimetre ............  103  g/cm3 
Tonne per cubic metre ...............  103  t/m3 
Kilogram per cubic metre .............  1  kg/m3 
Kilogram per hectolitre ..............  10  kg/hL or kg/hl 
Kilogram per litre ..................  103  kg/L or kg/1 
Gram per millilitre .................  103  g/mL or g/ml 
Pounds per cubic foot  
Pound per cubic inch ................  1 728  lb/cu in or lb/in3 
Pound per cubic foot ................  1  lb/cu ft or lb/ft3 
Pounds per gallon  
Pound per gallon ...................  1  lb/gal 
Pound per bushel ..................  1/8  lb/bus 
Thirteenth Schedule.
17. The Thirteenth Schedule to the Weights and Measures (National Standards) Regulations is repealed and the following Schedule substituted:—
THIRTEENTH SCHEDULE Regulation 38
UNITS OF MEASUREMENT OF WORK AND ENERGY
First column  Second column  Third column 
Name of unit  Work and energy in joules or foot poundals  Abbreviation or symbol 
Joules  
Petajoule ........................  1016  PJ 
Terajoule ........................  1012  TJ 
Gigajoule .......................  109  GJ 
Megajoule .......................  104  MJ 
Kilojoule ........................  103  kJ 
Joule ..........................  1  J 
Gigawatt hour ....................  3.6 × 1012  GW.h or GWh 
Megawatt hour ....................  3.6 × 100/?/  MW.h or MWh 
Kilowatt hour .....................  3.6 × 106  kW.h or kWh 
Watt hour .......................  3.6 × 103  W.h or Wh 
Kilocalorie .......................  4.1868 × 103  kcal 
Calorie .........................  4.1868  cal 
Therm ..........................  1 055.06 × 105  .. 
British thermal unit .................  1 055.06  Btu 
Megaelectronvolt ..................  1.602 07 × 1013  MeV 
Kiloelectronvolt ...................  1.602 07 × 1016  keV 
Electronvolt ......................  1.602 07 × 1019  eV 
Foot poundals  
Horsepower hour ..................  63.705 × 109  hph 
Foot poundforce or footpound .........  32.174  ft lbf or ft lb 
Foot poundal .....................  1  ft pdl 
Fifteenth Schedule.
18. The Fifteenth Schedule to the Weights and Measures (National Standards) Regulations is amended—
(a) by omitting the words—
“ Kilogrammeforce per square centimetre or kilogramme per square centimetre  98 066.5  kgf/sq cm or kgl/cm2 or kg/sq cm or kg/cm2 ”; and 
(b) by omitting the words—
“ Newton per square metre  1  N/sq m or N/m2 ”. 
Twentyfourth Schedule.
19. The Twentyfourth Schedule to the Weights and Measures (National Standards) Regulations is amended—
(a) by omitting Part C and substituting the following Part:—
“ C. Standards of Measurement of Mass and Weight that are not constructed of iron, expressed in terms of the Kilogram or Units related to the Kilogram in the Third Schedule  
 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  Eighttenths of the square root of the denomination of the standard in grams 
Denominations not exceeding 1 milligram  0.025 ”; and 
(b) by omitting from Part F the word “ milligrammes ” and substituting the word “ milligram ”.
Twentyfifth Schedule.
20. The Twentyfifth Schedule to the Weights and Measures (National Standards) Regulations is amended by omitting Part A and substituting the following Part:—
“ A. Standards of Measurement of Mass and Weight that are constructed of iron, expressed in terms of the Kilogram or Units related to the Kilogram in the Third Schedule  
 Permissible variation in grams  Limit of accuracy of verification in grams 
Denominations exceeding 25 kilograms ....  Sevenhundredths of the denomination of the standard in kilograms  Seventhousandths of the denomination of the standard in kilograms 
Denominations exceeding 1 kilogram but not exceeding 25 kilograms  Thirtyfivehundredths of the square root of the denomination of the standard in kilograms  Thirtyfivethousandths of the square root of the denomination of the standard in kilograms ”. 
Twentyeighth, Twentyninth and Thirtieth Schedules.
21. The Weights and Measures (National Standards) Regulations are amended by adding at the end thereof the following Schedules:—
TWENTYEIGHTH SCHEDULE Regulation 76a
UNITS OF MEASUREMENT OF ACTIVITY (RADIONUCLIDES)
First column  Second column  Third column  Fourth column 
Item no.  Name of unit  Activity in becquerels  Symbol 
1.  petabecquerel ....................  1015  PBq 
2.  terabecquerel ....................  1012  TBq 
3.  gigabecquerel ....................  109  GBq 
4.  megabecquerel ...................  106  MBq 
5.  kilobecquerel ....................  103  kBq 
6.  becquerel .......................  1  Bq 
7.  millibecquerel ....................  103  mBq 
8.  microbecquerel ...................  106  µBq 
9.  megacurie.......................  3.7 × 1016  MCi 
10.  kilocurie........................  3.7 × 1013  kCi 
11.  curie..........................  3.7 × 1010  Ci 
12.  millicurie.......................  3.7 × 107  mCi 
13.  microcurie.......................  3.7 × 104  µCi 
14.  nanocurie.......................  3.7 × 10  nCi 
15.  picocurie........................  3.7 × 102  pCi 
16.  femtocurie  3.7 × 105  fCi 
TWENTYNINTH SCHEDULE Regulation 76c
UNITS OF MEASUREMENT OF EXPOSURE (IONIZING RADIATION)
First column  Second column  Third column  Fourth column 
Item no.  Name of unit  Exposure in coulombs per kilogram  Symbol 
1.  kilocoulomb per kilogram ............  103  kC.kg1 
2.  coulomb per kilogram ...............  1  C.kg1 
3.  millicoulomb per kilogram ...........  103  mC.kg1 
4.  microcoulomb per kilogram ...........  106  µC.kg1 
5.  nanocoulomb per kilogram ...........  109  nC.kg1 
6.  megaroentgen ....................  0.258 × 103  MR 
7.  kiloroentgen .....................  0.258  kR 
8.  roentgen ........................  0.258 × 103  R 
9.  milliroentgen ....................  0.258 × 106  mR 
10.  microroentgen ....................  0.258 × 109  µR 
THIRTEENTH SCHEDULE Regulation 76e
UNITS OF MEASUREMENT OF ABSORBED DOSE. AND ANY OTHER PHYSICAL QUANTITY EXPRESSED IN TERMS OF ENERGY PER UNIT MASS (IONIZING RADIATION)
First column  Second column  Third column  Fourth column  
Item no.  Name of unit  Absorbed dose in grays  Symbol  
1.  megagray .....................  106  MGy  
2.  kilogray ......................  103  kGy  
3.  gray .........................  1  Gy  
4.  milligray ......................  103  mGy  
5.  microgray .....................  106  µGy  
6.  nanogray ......................  109  nGy  
7.  picogray ......................  1012  pGy  
8.  gigarad .......................  107  Grad  
9.  megarad ......................  104  Mrad  
10.  kilorad .......................  10  krad  
11.  rad ..........................  102  rad  
12.  millirad ......................  105  mrad  
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