
Specification for toolmakers´ flats and high precision surface plates.
NORMA vydaná dňa 31.1.1978
Označenie normy: BS 869:1978
Dátum vydania normy: 31.1.1978
Počet strán: 10
Približná hmotnosť: 30 g (0.07 libier)
Krajina: Britská technická norma
Kategória: Technické normy BS
Circular hardened steel or granite toolmakers flats up to 200 mm diameter and circular cast iron or granite high precision surface plates 250 and 400 mm diameter. Material, general design, finish, accuracy, cases, packing and marking. Composition of typical steels, cast irons and heat treatment. Status: Confirmed