1964_WEIGHTS_AND_MEASURES_ORDINANCE — Page 20

1987 Ed.]

Weights and Measures

[CAP. 68

19

FIRST SCHEDULE

DEFINITIONS OF UNITS OF MEASUREMENT

PART I

Measurement of Length

[s. 6(2).]

(a) Metric Units

1 kilometre = 1 000 metres

1 metre = the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second

1 decimetre = 0.1 metre

1 centimetre = 0.01 metre

1 millimetre = 0.001 metre

(b) Imperial Units

1 mile = 1 760 yards

1 furlong = 220 yards

1 chain = 22 yards

1 yard = 0.914 4 metre exactly

1 foot = 1/3 yard

1 inch = 1/36 yard

(c) Chinese Units

1 chek = 0.371 475 metre

1 tsun = 0.1 chek

1 fan = 0.1 tsun

PART II

Measurement of Area

(a) Metric Units

1 hectare = 100 ares

1 are = 100 square metres

1 square metre = an area equal to that of a square each side of which measures one metre

1 square decimetre = 0.01 square metre

1 square centimetre = 0.01 square decimetre

1 square millimetre = 0.01 square centimetre

(b) Imperial Units

1 square mile = 640 acres

1 acre = 4 840 square yards

1 rood = 1 210 square yards

1 square yard = an area equal to that of a square each side of which measures one yard

1 square foot = 1/9 square yard

1 square inch = 1/144 square foot

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