NF EN ISO 4545-2

NF EN ISO 4545-2

March 2018
Standard Current

Metallic materials - Knoop hardness test - Part 2 : verification and calibration of testing machines

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.

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Main informations

Collections

National standards and national normative documents

Publication date

March 2018

Number of pages

26 p.

Reference

NF EN ISO 4545-2

ICS Codes

77.040.10   Mechanical testing of metals

Classification index

A03-150-2

Print number

1

International kinship

ISO 4545-2:2017

European kinship

EN ISO 4545-2:2018
Sumary
Metallic materials - Knoop hardness test - Part 2 : verification and calibration of testing machines

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.

Replaced standards (1)
NF EN ISO 4545-2
March 2006
Standard Cancelled
Metallic materials - Knoop hardness test - Part 2 : verification and calibration of testing machines

Le présent document spécifie une méthode de vérification et d'étalonnage des machines d'essai utilisées pour la détermination de la dureté Knoop pour les matériaux métalliques conformément à l'ISO 4545-1. Il couvre des forces d'essai de 0,0987 07 N à 9,807 N. La méthode est recommandée seulement pour les empreintes de diagonales supérieur ou égal à 0,020 mm.

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