Metallic materials - Knoop hardness test - Part 1: Test method (ISO 4545-1:2023); German version EN ISO 4545-1:2023
Edition 2024-01

Metallic materials - Knoop hardness test - Part 2: Verification and calibration of testing machines (ISO 4545-2:2017); German version EN ISO 4545-2:2018
Edition 2018-07

Metallic materials - Knoop hardness test - Part 3: Calibration of reference blocks (ISO 4545-3:2017); German version EN ISO 4545-3:2018
Edition 2018-07

Metallic materials - Knoop hardness test - Part 4: Table of hardness values (ISO 4545-4:2017); German version EN ISO 4545-4:2018
Edition 2018-05

Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of fracture toughness of monolithic ceramics at room temperature by the surface crack in flexure (SCF) method (ISO 18756:2003); German version EN ISO 18756:2005
Edition 2005-09

Destructive tests on welds in metallic materials - Hardness testing of narrow joints welded by laser and electron beam (Vickers and Knoop hardness tests) (ISO 22826:2005); German version EN ISO 22826:2021
Edition 2021-05

Glass and glass-ceramics; Knoop hardness test; identical with ISO 9385:1990
Edition 1991-01

Metallic materials - Knoop hardness test - Part 1: Test method
Edition 2023-10