Cold-rolled narrow steel strip for heat-treatment - Technical delivery conditions - Part 4: Spring steels and other applications; German version EN 10132-4:2000 + AC:2002— 9 стр.
Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection (ISO 2859-1:1999 + Cor. 1:2001 + Amd.1:2011); Text in German and English— 195 стр.