DIN 50938:2016 Black oxide coatings on ferrous metal components - Requirements and test methods
DIN EN 10132-4:2003 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
DIN EN ISO 18265:2014-02 Metallic materials - Conversion of hardness values (ISO 18265:2013); German version EN ISO 18265:2013
DIN EN ISO 3269:2000 Fasteners - Acceptance inspection (ISO 3269:2000); German version EN ISO 3269:2000
DIN EN ISO 4042:2001 Fasteners - Electroplated coatings (ISO 4042:1999); German version EN ISO 4042:1999
DIN EN ISO 6507-1:2006 Metallic materials - Vickers hardness test - Part 1: Test method (ISO 6507-1:2005); English version of DIN EN ISO 6507-1:2006-03
DIN EN ISO 6508-1:2016 Metallic materials - Rockwell hardness test - Part 1: Test method (ISO 6508-1:2016); German version EN ISO 6508-1:2016
DIN ISO 2859-1:2014-08 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