INNOVATEST products are currently distributed in over 80 countries worldwide. The sales of all products is organized locally via INNOVATEST subsidiaries or local distributors.
A professional team of product specialists and commercial advisors offer a wide range of sales and technical training to our own staff and to distributors all over the world, to best meet the needs of our customers.
End User training is usually organized locally at end user facilities.
Hardness testers can be calibrated using special tools and software. Calibration can only be performed by trained personnel.
To get started, contact the INNOVATEST support team or call Phone: +31 43 352 00 60.
Calibrating a hardness tester ensures accurate, reliable, and repeatable test results. Over time, mechanical wear, environmental conditions, or usage can affect the tester’s performance. Regular calibration verifies that the instrument meets international standards like ISO and ASTM, which helps maintain product quality, comply with industry regulations, and pass audits.
Whether you use Rockwell, Brinell, Vickers, or Knoop methods, proper hardness tester calibration minimises measurement errors and ensures traceability to certified reference blocks.
ISO 6508 specifies calibration and verification procedures for Rockwell hardness testing machines and applies to all Rockwell and superficial Rockwell scales. The standard requires both direct and indirect verification.
Direct verification checks the accuracy of forces, indenter geometry, and depth-measuring systems using traceable instruments. Indirect verification uses certified Rockwell reference blocks to confirm accuracy in practical testing conditions.
Calibration should be performed by an accredited laboratory or qualified technician using traceable equipment at specified intervals or after maintenance, relocation, or suspected performance issues. ISO 6508 ensures consistency across Rockwell hardness measurements and is essential for testing laboratories operating under ISO 17025 or similar quality systems.
As of 2025, ASTM maintains several updated standards for hardness tester calibration:
These standards define procedures for verifying force accuracy, indenter shape, measurement systems, and testing performance through certified reference blocks. Each method requires both direct and indirect verification, performed at routine intervals or when the tester is serviced or moved. Compliance with ASTM calibration standards is vital for ensuring measurement integrity and audit readiness across manufacturing, research, and quality control environments.