PART IIMATERIALS, PRINCIPLES OF CONSTRUCTION AND MARKING OF NON-AUTOMATIC WEIGHING MACHINES
Units of measurementI117
1
Where units of measurement are marked on non-automatic weighing machines first passed as fit for use for trade—
a
before 27th April 1978, they shall be marked, in the case of the dram, in full or by means of the abbreviation, dr, only;
b
before 1st December 1980, they shall be marked in full though not in pounds or ounces or, except in the case of the ton or stone, by means of one of the following abbreviations or symbols only—
cwt, qr, oz tr, gr, t, kg, kilog, g, grm, CM, mg;
c
on or after those dates, they shall be marked in metric units or in ounce troy, in full or by means of one of the following abbreviations or symbols only—
oz tr, t, kg, g, CM, mg;
d
on and after 30th December 1992, they shall be marked in metric units or in ounce troy, in full or by means of one of the following abbreviations or symbols only—
oz tr, t, kg, g, CM, ct, mg.
2
Nothing in paragraph (1) shall authorise the use for trade of the ton, hundredweight, quarter, stone or grain in any circumstances, other than those permitted by regulations 10(2) and (4) of the Units of Measurement Regulations 198010 or of the dram in any circumstances other than those permitted by regulations 4(2) and (3) of the Units of Measurement Regulations 197811.