# The Weights and Measures (Quantity Marking and Abbreviations of Units) Regulations 1987, Regulation 11


(1) Only those symbols or abbreviations set out in Column 2 of Schedule 3 to these Regulations may be used for trade to indicate the relevant unit of measurement set out in Column 1 of that Schedule.
(2) In the case only of an abbreviation of an imperial unit so set out, the letter "s' may be added to it, when appropriate, to indicate the plural.

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Source: https://www.legislation.gov.uk/uksi/1987/1538/regulation/11 (the official version)
Page: https://openlegislation.uk/weights-and-measures-quantity-marking-and-abbreviations-of-units-regulations-1987/regulation-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.