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ISO 4545-2:2017

Metallic materials — Knoop hardness test — Part 2: Verification and calibration of testing machines

Publication date:   Dec 14, 2017

General information

90.93 Standard confirmed   Oct 2, 2023

ISO

ISO/TC 164/SC 3 Hardness testing

International Standard

77.040.10   Mechanical testing of metals

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Scope

ISO 4545-2:2017 specifies the method of verification and calibration of testing machines for determining Knoop hardness for metallic materials in accordance with ISO 4545‑1.
A direct method of verification and calibration is specified for the testing machine, indenter, and the diagonal length measuring system. An indirect verification method using reference blocks is specified for the overall checking of the machine.
If a testing machine is also to be used for other methods of hardness testing, it will be verified independently for each method.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 4545-2:2005

NOW

PUBLISHED
ISO 4545-2:2017
90.93 Standard confirmed
Oct 2, 2023

REVISED BY

IN_DEVELOPMENT
ISO/PWI 4545-2