
Specification for toolmakers´ straightedges.
NORM herausgegeben am 19.6.1939
Bezeichnung normen: BS 852:1939
Ausgabedatum normen: 19.6.1939
Zahl der Seiten: 10
Gewicht ca.: 30 g (0.07 Pfund)
Land: Britische technische Norm
Kategorie: Technische Normen BS
Straightedges of short length for very accurate work, having one working edge which is bevelled and very slightly rounded off (knife-edge). Material, general features, finish, accuracy, handles, glass test plate, case, packing, marking. Status: Confirmed