Standard

NS-EN ISO 6507-1:1997

Withdrawn

Note: This standard has a new edition: NS-EN ISO 6507-1:2023

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Abstract

This part of ISO 6507 specifies the method of Vickers hardness test for the three different ranges of test force for metallic materials (see table 1). The Vickers hardness test is specified in this part of ISO 6507 for lengths of indentation diagonals between 0,020 mm and 1,400 mm. The force values in this part of ISO 6507 were calculated from kilogram force values. They were introduced before the SI-system was adopted. It was decided to keep the values based on the old units for this edition, but for the next revision it will be necessary to consider the advantage of introducing rounded values of test force and the consequence on the hardness scales. NOTE - In general, decreasing the test force increases the scatter of results of the measurements. This is particularly true for low-force Vickers hardness tests and Vickers microhardness tests were the principal limitation will arise in the measurement of the diagonals of the indentation. For Vickers microhardness, the accuracy of determination of the mean diagonal length is unlikely to be better than +- 0,001 mm (see annex E). For specific materials and/or products, particular International Standard exist.

Document information

  • Standard from SN
  • Published:
  • Withdrawn:
  • Edition: 1
  • Version: 1
  • Document type: NAT
  • ICS 77.040.10
  • ICS 77.140.10

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