BSI - BS 817
|Publication Date:||31 March 1988|
|ICS Code (Measuring instruments):||17.040.30|
Rectangular and square plates of granite and cast iron, in sizes from 160 mm x 100 mm to 2500 mm x 1600 mm and from 12 in x 12 in to 96 in x 48 in, in four grades of accuracy. Specifies material, rigidity, finish, general features, accuracy, protection and marking.