Certificate pursuant to section 12 of the Weights and Measures Act 1985 certification no 2486/36 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade the following  pattern of a liquid flowmeter, as described in the descriptive annex to this certificate, and having the following characteristics ... : 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