Standard

NS-EN ISO 6507-2:1997

Withdrawn

Note: This standard has a new edition: NS-EN ISO 6507-2:2018

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Abstract

This part of ISO 6507 specifies a method of verification of testing machines for determining Vickers hardness in accordance with ISO 6507-1. It describes a direct verification method for checking the main functions of the machine, and an indirect verification method suitable for the overall checking of the machine. The indirect verification method may be used on its own for periodic routine checking of the machine in service. If a testing machine is also to be used for other methods of hardness testing, it is essential that it is verified independently for each method. Portable hardness testing machines shall comply with all the requirements of this part of ISO 6507, but the world "relocation" in 6.1a) does not apply. 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.

Document information

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  • Withdrawn: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

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