# The Weights and Measures Regulations 1963, Regulation 95


Spring balances may be tested for efficiency or ability to recover by leaving on them for a period not exceeding 24 hours, a load equal to the capacity of the instrument; and then, after the expiration of a further period of 4 hours, by testing for accuracy.

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Source: https://www.legislation.gov.uk/uksi/1963/1710/regulation/95 (the official version)
Page: https://openlegislation.uk/weights-and-measures-regulations-1963/regulation-95
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.