Certificate pursuant to section 12 of the Weights and Measures Act 1985 : certification no. 2176/34 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade a pattern of a liquid flowmeter ... Wayne 9000 MkII ... submitted by HTEC Ltd.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
HTEC Ltd.
Teddington : National Weights and Measures Laboratory,
1997.
Cover title.
Reference no. STD 6352.