Commonwealth Numbered Regulations

1991 No. 146 NATIONAL MEASUREMENT REGULATIONS (AMENDMENT) - REG 5

5.1 Omit the regulation, substitute: Permissible variation in certain
reference standards of measurement

"82. (1) Subject to subregulation (3), a standard for the measurement of
length, area, mass or volume, being an Inspectors' Class 1 standard of
measurement, an Inspectors' Class 2 standard of measurement or an Inspectors'
Class 3 standard of measurement, that, on verification, is found not to be
inaccurate by an amount exceeding the relevant permissible variation in
relation to its denomination has, for the purposes of the certificate referred
to in regulation 80, a value equal to that denomination.

"(2) For the purposes of subregulation (1), 'relevant permissible variation'
means:

   (a)  in the case of an Inspectors' Class 1 standard for the measurement of
        length, area, mass or volume that is of a denomination referred to in
        Schedule 32, 32A, 32B or 32C (as the case requires)-the amount
        specified in Column 3 in that Schedule in relation to that
        denomination; or

   (b)  in the case of an Inspectors' Class 1 standard for the measurement of
        area, mass or volume that is not of a denomination referred to in
        Column 1 in Schedule 32A, 32B or 32C-the amount appropriate to that
        denomination when the mathematical method known as linear
        interpolation is applied to the amounts of permissible variation
        specified:

        (i)    in the case of a denomination of area-in Column 3 in Schedule
               32A; or

        (ii)   in the case of a denomination of mass-in Column 3 in Schedule
               32B; or

        (iii)  in the case of a denomination of volume-in Column 3 in Schedule
               32C; or

   (c)  in the case of an Inspectors' Class 2 standard for the measurement of
        length or mass that is of a denomination referred to in Column 1 of
        Schedule 32 or 32B (as the case requires)-the amount specified, in
        relation to that denomination:

        (i)    in the case of a denomination of length-in Column 5 in Schedule
               32; or

        (ii)   in the case of a denomination of mass-in Column 5 in Schedule
               32B; or

   (d)  in the case of an Inspectors' Class 2 standard for the measurement of
        mass that is of a denomination not referred to in Column 1 in Schedule
        32B-the amount appropriate to that denomination when the mathematical
        method known as linear interpolation is applied to the amounts of
        permissible variation specified in Column 5 in that Schedule; or

   (e)  in the case of an Inspectors' Class 3 standard for the measurement of
        mass that is of a denomination referred to in Column 1 in Schedule
        32B-the amount specified in Column 7 in that Schedule in relation to
        that denomination; or

   (f)  in the case of an Inspectors' Class 3 standard for the measurement of
        mass that is of a denomination not referred to in Column 1 in Schedule
        32B-the amount appropriate to that denomination when the mathematical
        method known as linear interpolation is applied to the amounts of
        permissible variation specified in Column 7 in that Schedule.

"(3) A standard of measurement referred to in this regulation must not be
taken to have a value equal to the value of a particular denomination of
length, area, mass or volume, unless the accuracy with which that standard is
verified is of an uncertainty that does not exceed the amount of permissible
uncertainty referred to in respect of that denomination:

   (a)  in the case of an Inspectors' Class 1 standard of measurement-in
        subregulation 80(13); or

   (b)  in the case of an Inspectors' Class 2 standard of measurement-in
        subregulation 80(14); or

   (c)  in the case of an Inspectors' Class 3 standard of measurement-in
        subregulation 80(15).".