SCHEDULES
SCHEDULE 1 Definitions of Units of Measurement
Part I Measurement of Length
Metric units
Kilometre = | 1000 metres. |
METRE | is the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second. |
Decimetre = | 1/10 metre. |
Centimetre = | 1/100 metre. |
Millimetre = | 1/1000 metre. |
Part II Measurement of Area
Imperial units
Sch. 1 Pts. I, II: entries omitted (1.10.1995) by virtue of S.I. 1994/2867, reg. 6(5)(a)
Metric units
Hectare = | 100 ares. |
Decare = | 10 ares. |
Are = | 100 square metres. |
SQUARE METRE= | a superficial area equal to that of a square each side of which measures one metre. |
Square decimetre = | 1/100 square metre. |
Square centimetre = | 1/100 square decimetre. |
Square millimetre = | 1/100 square centimetre. |
Part III Measurement of Volume
Metric units
CUBIC METRE = | a volume equal to that of a cube each edge of which measures one metre. |
Cubic decimetre = | 1/1000 cubic metre. |
Cubic centimetre = | 1/1000 cubic decimetre. |
Hectolitre = | 100 litres. |
LITRE = | a cubic decimetre. |
Decilitre = | 1/10 litre. |
Centilitre = | 1/100 litre. |
Millilitre = | 1/1000 litre. |
Part IV Measurement of Capacity
F3Imperial unit
Heading in Sch. 1 Pt. IV substituted (1.1.2000) by S.I. 1994/2867, reg. 7(3)(a)(i)
Sch. 1 Pt. IV: definitions of “gallon”, “quart” and “gill” omitted (1.10.1995) by virtue of S.I. 1994/2867, reg. 6(5)(b)(i)
Sch. 1 Pt. IV: definition substituted (1.10.1995) by S.I. 1994/2867, reg. 6(5)(b)(ii)
Sch. 1 Pt. IV: definition of “fluid ounce” omitted (1.1.2000) by virtue of S.I. 1994/2867, reg. 7(3)(a)(ii)
Metric units
Hectolitre = | 100 litres. |
LITRE = | a cubic decimetre. |
Decilitre = | 1/10 litre. |
Centilitre = | 1/100 litre. |
Millilitre = | 1/1000 litre. |
Part V Measurement of Mass or Weight
F7Imperial unit
Heading in Sch. 1 Pt. V substituted (1.1.2000) by S.I. 1994/2867, reg. 7(3)(b)(i)
Sch. 1 Pt. V: definitions of “pound” and “ounce” omitted (1.1.2000) by virtue of S.I. 1994/2867, reg. 7(3)(b)(ii)
Sch. 1 Pt. V: definition of “ounce troy” substituted (1.1.2000) by S.I. 1994/2867, reg. 7(3)(b)(iii)
Metric units
Tonne, metric tonne = | 1000 kilograms. |
KILOGRAM= | is the unit of mass; it is equal to the mass of the international prototype of the kilogram. |
Hectogram = | 1/10 kilogram. |
Gram = | 1/1000 kilogram. |
Carat (metric) = | 1/5 gram. |
Milligram = | 1/1000 gram. |
F10PART VIDefinitions of certain units which may not be used for trade except as supplementary indications
Sch. 1 Pt. VI substituted (1.10.1995) by S.I. 1994/2867, reg. 6(5)(c)
Measurement of length | |||
|---|---|---|---|
Mile | = | 1760 yards. | |
Furlong | = | 220 yards. | |
Chain | = | 22 yards. | |
YARD | = | 0.9144 metre. | |
Foot | = | 1/3 yard. | |
Inch | = | 1/36 yard. | |
Measurement of area | |||
Square mile | = | 640 acres. | |
Acre | = | 4840 square yards. | |
Rood | = | 1210 square yards. | |
Square yard | = | a superficial area equal to that of a square each side of which measures one yard. | |
Square foot | = | 1/9 square yard. | |
Square inch | = | 1/144 square foot. | |
Measurement of volume | |||
Cubic yard | = | a volume equal to that of a cube each edge of which measures one yard. | |
Cubic foot | = | 1/27 cubic yard. | |
Cubic inch | = | 1/1728 cubic foot. | |
Measurement of capacity | |||
Bushel | = | 8 gallons. | |
Peck | = | 2 gallons | |
GALLON | = | 4.54609 cubic decimetres. | |
Quart | = | ¼ gallon. | |
Gill | = | ¼ pint. | |
F11Fluid ounce | F11= | F111/20 pint. | |
Fluid drachm | = | 1/8 fluid ounce. | |
Minim | = | 1/60 fluid drachm. | |
Measurement of mass or weight | |||
Ton | = | 2240 pounds. | |
Hundredweight | = | 112 pounds. | |
Cental | = | 100 pounds. | |
Quarter | = | 28 pounds. | |
Stone | = | 14 pounds. | |
F12POUND | F12= | F120.453 592 37 kilogram. | |
F13 Ounce | F13= | F131/16 pound | |
Dram | = | 1/16 ounce. | |
Grain | = | 1/7000 pound. | |
Pennyweight | = | 24 grains. | |
Ounce apothecaries | = | 480 grains. | |
Drachm | = | 1/8 ounce apothecaries. | |
Scruple | = | 1/3 drachm. | |
Metric ton | = | 1000 kilograms. | |
Quintal | = | 100 kilograms. | |
Part VII Measurement of Electricity
1. | (a) AMPERE | is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section and placed 1 metre apart in vacuum, would produce between these conductors a force equal to 2 x 10–7 newton per metre of length. |
(b) OHM | is the electric resistance between two points of a conductor when a constant potential difference of 1 volt, applied between the two points, produces in the conductor a current of 1 ampere, the conductor not being the seat of any electromotive force. | |
(c) VOLT | is the difference of electric potential between two points of a conducting wire carrying a constant current of 1 ampere when the power dissipated between these points is equal to 1 watt. | |
(d) WATT | is the power which in one second gives rise to energy of 1 joule. | |
2. | Kilowatt | = 1000 watts. |
Megawatt | = one million watts. |
Sch. 1 Pts. I, II: entries omitted (1.10.1995) by virtue of S.I. 1994/2867, reg. 6(5)(a)