Certificate pursuant to section 12 of the Weights and Measures Act 1985 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade the following pattern of a bottom loading dipstick interlock system : submitted by Emco Wheaton U.K. Limited.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Emco Wheaton U.K. Limited.
Teddington : National Weights and Measures Laboratory,
1988.
Weights and measures
Measuring instruments