NF EN ISO 4545-3

NF EN ISO 4545-3

March 2018
Standard Current

Metallic materials - Knoop hardness test - Part 3 : calibration of reference blocks

ISO 4545-3:2017 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.

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Main informations

Collections

National standards and national normative documents

Publication date

March 2018

Number of pages

20 p.

Reference

NF EN ISO 4545-3

ICS Codes

77.040.10   Mechanical testing of metals

Classification index

A03-150-3

Print number

1

International kinship

ISO 4545-3:2017

European kinship

EN ISO 4545-3:2018
Sumary
Metallic materials - Knoop hardness test - Part 3 : calibration of reference blocks

ISO 4545-3:2017 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.

Replaced standards (1)
NF EN ISO 4545-3
March 2006
Standard Cancelled
Metallic materials - Knoop hardness test - Part 3 : calibration of reference blocks

Le présent document spécifie la méthode pour l'étalonnage des blocs de référence à utiliser pour la vérification indirecte des machines d'essai de dureté Knoop conformément à l'ISO 4545-2. La méthode s'applique uniquement pour les empreintes dont les longues diagonales sont supérieures ou égales à 0,020 mm.

Table of contents
  • Avant-propos
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Fabrication du bloc de référence
  • 5 Machine d'étalonnage
  • 6 Mode opératoire d'étalonnage
  • 7 Nombre d'empreintes
  • 8 Uniformité de la dureté
  • 9 Marquage
  • 10 Certificat d'étalonnage
  • 11 Validité
  • Annexe A (informative) Réglage des systèmes d'éclairage de Köhler
  • Annexe B (informative) Incertitude de la valeur de dureté moyenne des blocs de référence de dureté
  • Bibliographie
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