Certificate pursuant to section 12 of the Weights and Measures Act 1985 : certification no. 2450 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade a pattern of a liquid flowmeter ... a vehicle-mounted liquid fuel meter ... submitted by Drum Engineering Co Ltd.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Drum Engineering Company Limited.
Teddington : National Weights and Measures Laboratory,
1997.
Cover title.
Reference no. STD 8410.