Certificate pursuant to section 12 of the Weights and Measures Act 1985 : Certification no. 1918/37 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade a pattern of a liquid flowmeter ... DOMS PSS 2000 as described in C1958 ... submitted by Harpur Forecourt Services.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Harpur Forecourt Services (Firm)
Teddington : National Weights and Measures Laboratory,
1996.
Cover title.
Reference no. STD 7831.