Certificate pursuant to section 12 of the Weights and Measures Act 1985 : certification no. 1918/57 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade a pattern of a liquid flowmeter as described in the descriptive annex ...  : submitted by: HTEC Ltd.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
HTEC Ltd.
Teddington : National Weights and Measures Laboratory,
2001.
Cover title.
Reference no. STD 9462.