Metallic materials - Hardness test - Part 1: Rockwell test (scales A, B, C, D, E, F, G, H, K) and Rockwell superficial test (scales 15N, 30N, 45N, 15T, 30T and 45T); German version EN 10109-1:1994— 12 стр.
Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:1997); German version EN ISO 377:1997— 16 стр.
Steel and iron - Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996); German version EN ISO 14284:2002— 35 стр.