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Hardness Calibration
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OCS offers indirect verification of Rockwell and Brinell Hardness Testing Machines.




All calibrations are ISO/IEC 17025 accredited and traceable to the International System of Units (SI) through NIST.




OCS services include:
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  • Indirect Verifications per ASTM E18 for Rockwell Hardness Testers
  • Indirect Verifications per ASTM E10 for Brinell Hardness Testers
  • Certificates including full before/after data
  • Onsite and ship-in service
  • Flexible calibration contracts
  • Trend analysis and history reporting


Hardness manufacturer brands we calibrate include but are not limited to:

  • Instron
  • Mitutoyo
  • New Age
  • phase II
  • Shimadzu

  • Starrett
  • Tinius Olsen
  • TE
  • Time Group
  • Wilson






OCS sells a broad range of products for weighing, measuring, and testing applications. If you're looking for new calibration equipment, browse our product lines or contact Tim Gunn at 800.362.0364.

Specialty Products

OCS specialty product lines include calibration equipment in the areas of Dimensional, Force Measurement, Laboratory, Pressure, Speed and Torque. We have relationships with a wide variety of specialty product manufacturers and are confident that we can find and provide you with the equipment you need.

Standard Product Line

Browse our standard scales, weighing and measurement systems. More than 80 years experience has given us a rare depth of knowledge in the weighing and measurement field.

OCS Technologies, Inc. • 14901 Emery Avenue  • Cleveland, OH 44135 •  800.362.0364