BS EN ISO 4545-2:2006
Metallic materials - Knoop hardness test - Verification and calibration of testing machines

Standard No.

BS EN ISO 4545-2:2006

Release Date

2006

Published By

British Standards Institution (BSI)

Status

Be replaced

Replace By

BS EN ISO 4545-2:2017

Latest

BS EN ISO 4545-2:2018

Replace

04/30074850 DC:2004

Scope

This part of ISO 4545 specifies the method of verification of testing machines for determining Knoop hardness for metallic materials in accordance with ISO 4545-1-1. It covers test forces from 0,098 07 N to 19,614 N. The method is recommended only for indentations with diagonals ≥ 0,020 mm. It specifies a direct verification method for checking the main functions of the machine, and an indirect verification method suitable for the overall checking of the machine. The indirect verification method may be used on its own for periodic routine checking of the machine in service. If a testing machine is also to be used for other methods of hardness testing, it should be verified independently for each method.

BS EN ISO 4545-2:2006 history

• 1970 BS EN ISO 4545-2:2018 Metallicmaterials — Knoop hardness test Part 2 : Verification and calibration of testing machines
• 2020 BS EN ISO 4545-2:2017 Metallic materials. Knoop hardness test. Verification and calibration of testing machines
• 2006 BS EN ISO 4545-2:2006 Metallic materials - Knoop hardness test - Verification and calibration of testing machines