DIN Standards Committee Materials Testing
DIN EN ISO 4545-4
Metallic materials - Knoop hardness test - Part 4: Table of hardness values (ISO 4545-4:2017); German version EN ISO 4545-4:2018
Metallische Werkstoffe - Härteprüfung nach Knoop - Teil 4: Tabelle zur Bestimmung der Härtewerte (ISO 4545-4:2017); Deutsche Fassung EN ISO 4545-4:2018
Document: references other documents
Responsible national committee
NA 062-01-41 AA - Hardness testing for metals
Responsible european committee
CEN/TC 459/SC 1 - Test methods for steel (other than chemical analysis)