Certificate pursuant to section 12 of the Weights and Measures Act 1985 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade the following pattern of a self-indicating counter weighing machine connected to an electronic point of sale terminal.
National Weights and Measures Laboratory.
Datachecker Ltd.
Teddington : National Weights and Measures Laboratory,
1990.
Reference no STD 5688
Weighing-machines