# The Weights and Measures (Local and Working Standard Weights and Testing Equipment) Regulations 1986, Regulation 7


Testing equipment consisting of weighing equipment used for testing working standard weights, test weights and egg grading machine test poises shall comply with the following requirements:
(a) the discrimination threshold of the testing equipment used shall not exceed one-fifth of the relevant amount specified in Tables 1 to 6 in Schedule 2 to these Regulations as the limit of error for the weight being tested, or, in the case of an egg grading machine test poise, 7 mg, and
(b) the repeatability of the testing equipment shall be such that the 95 per cent. confidence interval of a single reading does not exceed one-fifth of the relevant amount specified in Tables 1 to 6 in Schedule 2 to these Regulations as the limit of error for the weight being tested, or, in the case of an egg grading machine test poise, 7 mg.

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Source: https://www.legislation.gov.uk/uksi/1986/1685/regulation/7 (the official version)
Page: https://openlegislation.uk/weights-and-measures-local-and-working-standard-weights-and-testing-equipment-regulations-1986/regulation-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.