NF EN ISO 4545-2

NF EN ISO 4545-2

March 2006
Standard Cancelled

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

ISO 4545-2:2005 specifies the method of verification of testing machines for determining Knoop hardness for metallic materials in accordance with ISO 4545-1. It covers test forces from 0,098 07 N to 19,614 N. The method is recommended only for indentations with diagonals greater than or equal to 0,020 mm.

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Main informations

Collections

National standards and national normative documents

Publication date

March 2006

Number of pages

20 p.

Reference

NF EN ISO 4545-2

ICS Codes

77.040.10   Mechanical testing of metals

Classification index

A03-150-2

Print number

1 - 07/06/2006

International kinship

European kinship

EN ISO 4545-2:2005
Sumary
Metallic materials - Knoop hardness test - Part 2 : verification and calibration of testing machines

ISO 4545-2:2005 specifies the method of verification of testing machines for determining Knoop hardness for metallic materials in accordance with ISO 4545-1. It covers test forces from 0,098 07 N to 19,614 N. The method is recommended only for indentations with diagonals greater than or equal to 0,020 mm.

Standard replaced by (1)
NF EN ISO 4545-2
March 2018
Standard Current
Metallic materials - Knoop hardness test - Part 2 : verification and calibration of testing machines

<p>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.</p> <p>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.</p> <p>If a testing machine is also to be used for other methods of hardness testing, it will be verified independently for each method.</p>

Table of contents
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  • Avant-propos
    iv
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Conditions générales
    1
  • 4 Vérification directe
    2
  • 5 Vérification indirecte
    4
  • 6 Intervalles entre vérifications
    6
  • 7 Rapport de vérification/certificat d'étalonnage
    6
  • Annexe A (informative) Notes sur les pénétrateurs en diamant
    7
  • Annexe B (informative) Incertitude de mesure des résultats d'étalonnage de la machine d'essai de dureté
    8
  • Bibliographie
    14
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