Heat-Treatment of Ferrous Metals - Heat-treated Parts - Representation and Indications in Drawings; Hardening, Hardening and Tempering, Quenching and Tempering— 4 стр.
Tensile testing of metallic materials; method of test at ambient temperature (including Corrigendum AC1:1990); german version EN 10002-1:1990 and AC 1:1990