EN-ISO-4545-4 Complete Document History
Part 4: Table of Hardness Values, Metallic Materials - Knoop Hardness Test

Complete Current Edition:
   2018 EDITION - ONLY AVAILABLE IN NATIONAL EDITIONS - Feb. 7, 2017

Obsolete Revision Information:
   2005 EDITION - ONLY AVAILABLE IN NATIONAL EDITIONS - Nov. 1, 2005