Certificate pursuant to Section 12 of the Weights and Measures Act 1985, certification no 2176/57 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade a pattern of a liquid flowmeter ... 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.
Reference no. STD 9462.