ISO 4545-3:2017
Metallic materials - Knoop hardness test- Part 3:Calibration of reference blocks

Standard No.

ISO 4545-3:2017

Release Date

2017

Published By

International Organization for Standardization (ISO)

Latest

ISO 4545-3:2017

Scope

This document specifies the method for the calibration of reference blocks to be used for the indirect verification of Knoop hardness testing machines as specified in ISO 4545-2. The method is applicable only for indentations with long diagonals ≥0,020 mm.

ISO 4545-3:2017 Referenced Document

• ISO 376:2011 Metallic materials - Calibration of force-proving instruments used for the verification of uniaxial testing machines
• ISO 4545-1 Metallic materials — Knoop hardness test — Part 1: Test method*， 2023-08-01 Update
• ISO 4545-2 Metallic materials - Knoop hardness test- Part 2:Verification and calibration of testing machines

ISO 4545-3:2017 history

• 2017 ISO 4545-3:2017 Metallic materials - Knoop hardness test- Part 3:Calibration of reference blocks
• 2005 ISO 4545-3:2005 Metallic materials - Knoop hardness test - Part 3: Calibration of reference blocks