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Cal-Cert services and calibrates all makes and models of hardness testers. We use the indirect method of calibration as outlined in ASTM E 18. We are accredited for several ranges of Rockwell testing as well as Brinell testing. See Our Scope of accreditation for complete list of the ranges we calibrate.

In addition to repairing and calibrating, we supply all necessary parts to properly maintain your hardness equipment.