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 ï‚´ 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 ï‚´ 10 3 J

1.9

concentration

Degrees Brix

º Bx

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

º Z

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

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