NF EN ISO 4545-1

NF EN ISO 4545-1

March 2006
Standard Cancelled

Metallic materials - Knoop hardness test - Part 1 : test method

Le présent document spécifie la méthode d'essai de dureté Knoop pour les matériaux métalliques, pour des forces d'essai comprises entre 0,098 07 N et 9,807 N. La méthode est recommandée seulement pour des empreintes de diagonales supérieur ou égal à 0,020 mm.

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Main informations

Collections

National standards and national normative documents

Publication date

March 2006

Number of pages

22 p.

Reference

NF EN ISO 4545-1

ICS Codes

77.040.10   Mechanical testing of metals

Classification index

A03-150-1

Print number

1 - 22/02/2006

International kinship

ISO 4545-1:2005

European kinship

EN ISO 4545-1:2005
Sumary
Metallic materials - Knoop hardness test - Part 1 : test method

Le présent document spécifie la méthode d'essai de dureté Knoop pour les matériaux métalliques, pour des forces d'essai comprises entre 0,098 07 N et 9,807 N. La méthode est recommandée seulement pour des empreintes de diagonales supérieur ou égal à 0,020 mm.
Standard replaced by (1)
NF EN ISO 4545-1
March 2018
Standard Current
Metallic materials - Knoop hardness test - Part 1 : test method

ISO 4545-1:2017 specifies the Knoop hardness test method for metallic materials for test forces from 0,009 807 N to 19,613 N. The Knoop hardness test is specified in this document for lengths of indentation diagonals ≥0,020 mm. Using this method to determine Knoop hardness from smaller indentations is outside the scope of this document as results would suffer from large uncertainties due to the limitations of optical measurement and imperfections in tip geometry. ISO 14577-1 allows the determination of hardness from smaller indentations. A periodic verification method is specified for routine checking of the testing machine in service by the user. Special considerations for Knoop testing of metallic coatings can be found in ISO 4516.

Table of contents
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Principe
    1
  • 4 Symboles et termes abrégés
    2
  • 5 Appareillage
    3
  • 6 Éprouvette
    4
  • 7 Mode opératoire
    4
  • 8 Incertitude des résultats
    5
  • 9 Rapport d'essai
    6
  • Annexe A (informative) Procédure de contrôle périodique de la machine d'essai par l'utilisateur
    7
  • Annexe B (informative) Incertitude des valeurs de dureté mesurées
    8
  • Bibliographie
    14
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