ISO 15349-2:1999 Unalloyed steel - Determination of low carbon content - Part 2: Infrared absorption method after combustion in an induction furnace (with preheating)
ISO 4545:1993 Metallic materials; hardness test; Knoop test
ISO 6507-1:2005 Metallic materials - Vickers hardness test - Part 1: Test method*， 2005-12-01 Update
ISO 9556:1989 Steel and iron; determination of total carbon content; infrared absorption method after combustion in an induction furnace
EN ISO 3887:2003 history
2023EN ISO 3887:2023 Steels - Determination of the depth of decarburization (ISO 3887:2023)
2018EN ISO 3887:2018 Steels - Determination of the depth of decarburization
2003EN ISO 3887:2003 Steels - Determination of depth of decarburization