Document ID: chunk:federal_register_of_legislation:F2024C01009:schedule:2
Version: federal_register_of_legislation:F2024C01009
Segment Type: schedule
Provision Reference: sch 2
Character Range: 116308–119836

Schedule 2—Additional legal units of measurement
(regulation 6)

Part 1—Additional Australian legal units of measurement

Item  Quantity            Name                   Symbol      Definition
1.1   length              inch                   in          0.9144/36 m
1.2   length              foot                   ft          0.9144/3 m
1.3   mass                troy ounce             oz tr       480  0.453 592 37/7000 kg
1.4   power               horsepower             hp          745.7 W
1.5   pressure            millibar               mb or mbar  100 Pa
1.6   pressure            millimetre of mercury  mmHg        133.322 19 Pa
1.7   velocity            foot per minute        ft/min      0.3048/60 m/s
1.8   work and energy     kilocalorie            kcal        4.1868  103 J
1.9   concentration       Degrees Brix           ºBx         concentration in grams of solute per 100g of an aqueous solution of pure sucrose, having the same density as a sugar solution at the same temperature
1.10  concentration       Degrees Z              ºZ          concentration equivalent to 0.26g of sucrose per 100g of an aqueous solution of pure sucrose
1.11  concentration       Pol                    Pol         concentration in grams of solute per 100g of an aqueous solution of pure sucrose having the same optical rotation as a sugar solution at the same temperature
1.12  mass concentration                                     grams of alcohol per 210 litres of exhaled breath

Part 2—Purposes for which additional legal units of measurement may be used

Item  Name                   Purpose
2.1   inch                   (a) automotive tyres or rims; or
                             (b) equipment used, or intended for use, in the manufacture or repair of automotive tyres or rims; or
                             (c) precision pipes, precision tubes, precision fittings or precision screw threads; or
                             (d) spare parts for equipment constructed using measurements other than metric measurements; or
                             (e) equipment used, or intended for use, in the manufacture of equipment referred to in paragraph (c) or (d); or
                             (f) defence equipment; or
                             (g) equipment used, or intended for use, in aviation; or
                             (h) equipment used, or intended for use, in the computer industry; or
                             (i) equipment used, or intended for use, in the electronics industry; or
                             (j) components of equipment referred to in subparagraphs (a) to (i) inclusive
2.2   foot                   (a) altitude in aviation; or
                             (b) vertical separation in aviation; or
                             (c) submarine depth
2.3   troy ounce             the mass of precious metals
2.4   horsepower             engine ratings:
                             (a) in the aviation industry; or
                             (b) in defence equipment
2.5   millibar               air pressure in the aviation industry
2.6   millimetre of mercury  blood pressure
2.7   foot per minute        vehicular vertical speed
2.8   kilocalorie            food energy values
2.9   Degrees Brix           measurements of sugar concentration
2.10  Degrees Z              measurements of sugar concentration
2.11  Pol                    measurements of sugar concentration
2.12                         measurement of the mass concentration of alcohol in exhaled breath