Document ID: chunk:federal_register_of_legislation:F2024C01009:reg:3:p3
Version: federal_register_of_legislation:F2024C01009
Segment Type: reg
Provision Reference: reg 3 (pt 3/3)
Character Range: 16924–19100

System of Units.
SI definition of a unit of measurement means the definition of the unit in Appendix 3 to Resolution 1 adopted by the General Conference on Weights and Measures at its 26th meeting, held at Versailles from 13 to 16 November 2018.
Note: The Appendix could in 2019 be viewed on the International Bureau of Weights and Measures website (https://www.bipm.org/).
State secondary standard means a reference standard of measurement that has been verified in accordance with regulation 13 and that complies with the requirements of regulation 25 for the maximum permissible uncertainty of a State secondary standard.
State tertiary standard means a reference standard of measurement that has been verified in accordance with regulation 13 and that complies with the requirements of regulation 26 for the maximum permissible uncertainty of a State tertiary standard.
time, for a standard of measurement, means time that is not derived from the calendar.
variant means a change made to the pattern of an instrument, subject to the arrangement of the components of the instrument and the measuring element being substantially of the same design as that of the approved pattern.
verification means:
 (a) for a standard of measurement—verification of the standard under regulation 13; or
 (b) for an artefact—verification of a physical quantity of an artefact under regulation 34C.
verifying authority:
 (a) for all standards of measurement and artefacts—means the Chief Metrologist; and
 (b) for Australian secondary standards of measurement of ionising radiation—includes:
 (i) the Chief Executive Officer of the Australian Nuclear Science and Technology Organisation; and
 (ii) the Chief Executive Officer of the Australian Radiation Protection and Nuclear Safety Agency; and
 (c) for a particular reference standard of measurement—includes a body or person appointed under regulation 73 in relation to reference standards of measurement of the same kind as the particular reference standard of measurement; and
 (d) for a particular artefact—includes a body or person appointed under regulation 73 in relation to an artefact of the same kind as the particular artefact.