# The Weights Regulations 1986, Schedule 3: APPROPRIATE LOCAL OR WORKING STANDARD WEIGHTS


Weight
Standard of weight to be used
1. METRIC EXCEPT CARAT (METRIC) WEIGHTS
Not less than 50 mg
Local standards or working standards
Not more than 20 mg
Local standards or working standards which fall within the prescribed limits of error relating to the equivalent local standard weight
2. AVOIRDUPOIS EXCEPT WEIGHTS EXPRESSED AS MULTIPLES OR FRACTIONS OF 1/7000 lb.
Local standards or working standards
3. OUNCE TROY
Local standards or working standards which fall within the prescribed limits of error relating to the equivalent local standard weight
4. CARAT (METRIC)
Local standards or working standards which fall within the prescribed limits of error relating to the equivalent local standard weight
5. WEIGHTS EXPRESSED AS MULTIPLES OR FRACTIONS OF 1/7000 lb.
Local standards or working standards which fall within the prescribed limits of error relating to the equivalent local standard weight

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Source: https://www.legislation.gov.uk/uksi/1986/1683/schedule/3 (the official version)
Page: https://openlegislation.uk/weights-regulations-1986/schedule-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.