content="14/09/2022″/> BQC, equipment for quality control and marking

HRKw - ASTM E18 & EN ISO 6508

  • reference blocks manufactured in accordance with EN ISO 6508-3 and ASTM E18-A4
  • for the annual indirect verification of the HRK hardness scale, the use of 3 blocks is necessary in the hardness ranges: 40~60 HRK, 65~80 HRK, 85~100 HRK
  • for purpose of routine checking, only one block with a nominal hardness corresponding approximately to that of the tests to be performed will be used
  • available as standard with ISO certificate and optional with UKAS certificate and/or marked with a hexagonal grid ranging from 2 mm to 6 mm (not 0.5 mm) for greater ease of testing
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