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Force, pressure, mass and density

Extensometer calibration rigs

UKAS-accredited calibration services

Material properties are vital in the design and manufacturing of all component parts. Extensometers are used to measure strain during testing enabling materials properties such as tensile strength and modulus of elasticity to be determined.

To ensure repeatability and confidence in the test data, extensometers are calibrated in extensometer calibration rigs. Our service provides traceability to national standards and a classification or grading to standards BS EN ISO 9513 and ASTM E 83.

NPL provides the following Extensometer Calibration Rig services:

  • UKAS-accredited calibration of extensometer calibration rigs in both compression and tension directions to BS EN ISO 9513 and ASTM E 83. The range of measurement is 0 mm to 1000 mm with an expanded uncertainty of ± (31 + 3.1R) nm where R is the extension in mm
  • Repairs, realignment and adjustments that may improve BS EN ISO 9513 and ASTM E 83 classifications

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Contact our Customer Services team on +44 20 8943 7070