WEIGHTS AND MEASURES (NATIONAL STANDARDS) REGULATIONS (AMENDMENT) 1983 NO. 64 WEIGHTS AND MEASURES (NATIONAL STANDARDS) REGULATIONS (AMENDMENT) 1983 NO. 64 - TABLE OF PROVISIONS 1. The candela 2. 3. Prescribed amount for the purposes of sub-section 18A (4) of the Act 4. Schedule 2 5. Schedule 8 6. Schedule 13 7. Schedule 14 8. Insertion of Schedules 30A and 30B 1983 No. 64 WEIGHTS AND MEASURES (NATIONAL STANDARDS) REGULATIONS (AMENDMENT) - REG 1 The candela 1. Regulation 56 of the Weights and Measures (National Standards) Regulations is repealed and the following regulation substituted: "56.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 and has a 1 radiant intensity in that direction of --- watt per steradian.". 683 1983 No. 64 WEIGHTS AND MEASURES (NATIONAL STANDARDS) REGULATIONS (AMENDMENT) - REG 2 2. After Division 30 of Part II of the Weights and Measures (National Standards) Regulations the following Divisions are inserted: "Division 31-Magnetic flux 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. 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. "Division 32-Magnetic flux density 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. 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.". 1983 No. 64 WEIGHTS AND MEASURES (NATIONAL STANDARDS) REGULATIONS (AMENDMENT) - REG 3 Prescribed amount for the purposes of sub-section 18A (4) of the Act 3. Regulation 84 of the Weights and Measures (National Standards) Regulations is amended by omitting "$32,227" and substituting "$40,499". 1983 No. 64 WEIGHTS AND MEASURES (NATIONAL STANDARDS) REGULATIONS (AMENDMENT) - REG 4 Schedule 2 4. Schedule 2 to the Weights and Measures (National Standards) Regulations is amended by omitting from column 3 in item 1 "10*8*" and substituting "10*6*". 1983 No. 64 WEIGHTS AND MEASURES (NATIONAL STANDARDS) REGULATIONS (AMENDMENT) - REG 5 Schedule 8 5. Schedule 8 to the Weights and Measures (National Standards) Regulations is repealed and the following Schedule substituted: "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". ------------------------------------------------------------------------------ -- 1983 No. 64 WEIGHTS AND MEASURES (NATIONAL STANDARDS) REGULATIONS (AMENDMENT) - REG 6 Schedule 13 6. Schedule 13 to the Weights and Measures (National Standards) Regulations is amended by omitting item 7 and substituting the following items: "7 nanowatt . . . . . . . . . . . . . . . . 10*-9* nW 8 picowatt . . . . . . . . . . . . . . . . 10*-12* pW 9 horsepower . . . . . . . . . . . . . . . 745.7 hp". 1983 No. 64 WEIGHTS AND MEASURES (NATIONAL STANDARDS) REGULATIONS (AMENDMENT) - REG 7 Schedule 14 7. Schedule 14 to the Weights and Measures (National Standards) Regulations is amended by omitting items 5 and 6 and substituting the following items: "5 millipascal . . . . . . . . . . . . . . 10*-3* mPa 6 micropascal . . . . . . . . . . . . . . 10*-6* ~Pa 7 millibar . . . . . . . . . . . . . . . . 100 mb or mbar 8 millimetre of mercury . . . . . . . . . 133.322 19 mmHg". 1983 No. 64 WEIGHTS AND MEASURES (NATIONAL STANDARDS) REGULATIONS (AMENDMENT) - REG 8 Insertion of Schedules 30A and 30B 8. After Schedule 30 to the Weights and Measures (National Standards) Regulations the following Schedules are inserted: "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 ~Wb ------------------------------------------------------------------------------ -- "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* ~T 4 nanotesla . . . . . . . . . . . . . . . 10*-9* nT". ------------------------------------------------------------------------------ -- - NOTES 1983 No. 64*1* WEIGHTS AND MEASURES (NATIONAL STANDARDS) REGULATIONS *2* (AMENDMENT) *1* Notified in the Commonwealth of Australia Gazette on 24 May 1983. *2* Statutory Rules 1961 No. 142 as amended by 1963 No. 126; 1964 No. 146; 1965 No. 13; 1968 No. 150; 1970 No. 40; 1972 Nos. 62, 133 and 160; 1973 Nos. 68 and 253; 1977 No. 150; 1979 No. 65; 1981 No. 195.