Hardness Tester Calibrations

Hardness Tester Calibrations at ATS

Applied Technical Services offers on-site hardness tester calibrations. ATS uses indirect verification per the applicable ASTM Standard.

  • Rockwell Hardness Testers
  • ASTM E18, E384, E10
  • NIST Traceability
  • Microhardness Testers
  • Knoop Testers
  • Vickers Testers
  • Brinell Hardness Testers
  • NVLAP Certified Blocks

We offer calibration of the following Hardness Testers:

  • Standard Rockwell Hardness Testers which include C, B, and A Scales. To certify your Standard Rockwell Hardness tester to the current revision of ASTM E18, you are required to have certified penetrators. If certified penetrators are not available, we can certify your tester to the previous revision. We offer NIST Traceability on C Scale only.
  • Superficial Rockwell Hardness Testers which include 15, 30, 45 N and T Scales. To certify your Superficial Rockwell Hardness tester to the current revision of ASTM E18, you are required to have certified penetrators. If certified penetrators are not available, we can certify your tester to the previous revision. We offer NIST Traceability on C Scale only.
  • Twin Scale Hardness Testers which include C, B, and A Scales plus 15, 30, 45 N and T Scales. To certify your Superficial Rockwell Hardness tester to the current revision of ASTM E18, you are required to have certified penetrators. If certified penetrators are not available, we can certify your tester to the previous revision. We offer NIST Traceability on C Scale only.
  • Microhardness Testers are calibrated with NVLAP certified blocks and are calibrated in accordance with the latest revision of ASTM E384. ATS can calibrate both Knoop and/or Vickers Testers.
  • Brinell Hardness Testers (500, 1500, and 3,000 kg loads) are calibrated with NVLAP certified blocks and are calibrated in accordance with the latest revision of ASTM E10. Current revision of E10 requires the tester to have carbide balls as indenters. ATS will be unable to calibrate a tester that only has steel ball indenters.

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