Certificate pursuant to section 12 of the Weights and Measures Act 1985 certification no 2162/47 ... 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 to this certificate, and having the following characteristics ... : submitted by Schlumberger RPS.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Schlumberger RPS.
Teddington : National Weights and Measures Laboratory,
1999.
Reference no. STD 8707.