http://www.legislation.gov.uk/uksi/1983/978/regulation/1/made

The Factories Act 1961 etc. (Metrication) Regulations 1983

Westlaw

King's Printer of Acts of Parliament

2011-04-05

HEALTH AND SAFETY

These Regulations amend the Factories Act 1961 (“the 1961 Act”) by substituting amounts or quantities expressed in metric units for amounts or quantities not so expressed. The substituted amounts preserve the effect of the original provisions except to the extent necessary to obtain amounts expressed in suitable and convenient terms, save that, by Regulation 2, section 19(1) of the Act (which relates to self-acting machines) is amended to improve standards of safety.