NF EN ISO 6508-3

NF EN ISO 6508-3

April 2015
Standard Cancelled

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

ISO 6508-3:2015 specifies a method for the calibration of reference blocks to be used for the indirect and daily verification of Rockwell hardness testing machines, as specified in ISO 6508‑2:2015.Attention is drawn to the fact that the use of hard metal for ball indenters is considered to be the standard type of Rockwell indenter ball. Steel indenter balls can be used only when complying with ISO 6508‑1:2015, Annex A.

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Main informations

Collections

National standards and national normative documents

Publication date

April 2015

Number of pages

26 p.

Reference

NF EN ISO 6508-3

ICS Codes

77.040.10   Mechanical testing of metals

Classification index

A03-153-3

Print number

1

International kinship

ISO 6508-3:2015

European kinship

EN ISO 6508-3:2015
Sumary
Metallic materials - Rockwell hardness test - Part 3 : calibration of reference blocks

ISO 6508-3:2015 specifies a method for the calibration of reference blocks to be used for the indirect and daily verification of Rockwell hardness testing machines, as specified in ISO 6508‑2:2015.

Attention is drawn to the fact that the use of hard metal for ball indenters is considered to be the standard type of Rockwell indenter ball. Steel indenter balls can be used only when complying with ISO 6508‑1:2015, Annex A.

Replaced standards (1)
NF EN ISO 6508-3
March 2006
Standard Cancelled
Metallic materials - Rockwell hardness test - Part 3 : calibration of reference blocks (scales A, B, C, D, E, F, G, H, K, N, T)

ISO 6508-3:2005 specifies a method for the calibration of reference blocks to be used for the indirect verification of Rockwell hardness testing machines (scales A, B, C, D, E, F, G, H, K, N, T), as specified in ISO 6508-2.

Standard replaced by (1)
NF EN ISO 6508-3
December 2023
Standard Current
Metallic materials - Rockwell hardness test - Part 3 : calibration of reference blocks

This document specifies a method for the calibration of reference blocks to be used for the indirect and daily verification of Rockwell hardness testing machines and indenters, as specified in ISO 6508-2. This document also specifies requirements for Rockwell machines and indenters used for calibrating reference blocks and specifies methods for their calibration and verification. Attention is drawn to the fact that the use of hard metal for ball indenters is considered to be the standard type of Rockwell indenter ball.

Table of contents
  • Avant-propos
    iv
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Fabrication des blocs de référence
    1
  • 4 Machine d'étalonnage et pénétrateur d'étalonnage
    2
  • 5 Mode opératoire d'étalonnage
    5
  • 6 Nombre d'empreintes
    5
  • 7 Uniformité de la dureté
    6
  • 8 Marquage
    7
  • 9 Certificat d'étalonnage
    7
  • 10 Validité
    8
  • Annexe A (normative) Uniformité des blocs de référence
    9
  • Annexe B (informative) Incertitude de la valeur de dureté moyenne des blocs de référence de dureté
    11
  • Annexe C (normative) Prescriptions relatives aux pénétrateurs diamant de référence
    17
  • Bibliographie
    18
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