Certificate of EEC pattern approval of a measuring instrument issued by the Secretary of State for Trade and Industry ... to Road Tankers Northern Limited in respect of: a road tanker meter measuring system for liquids other than water ...
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Road Tankers Northern Limited.
Teddington : National Weights and Measure Laboratory,
1991.
Reference No. STD 6434
Measuring instruments