Certificate pursuant to section 12 of the Weights and Measures Act 1985 : certification no. 2487 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade a pattern of a cold water meter as described in the descriptive annex to this certificate ... : submitted by: BTR Metering Ltd.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
BTR Metering Ltd.
Teddington : National Weights and Measures Laboratory,
1998.
Cover title.
Reference no. STD 9079.