The process of verifying an extensometer to ASTM E83 is a rigorous calibration procedure.
While ASTM E83 defines how to calibrate, it does not define when . However, most quality management systems (ISO 17025, Nadcap) require annual recalibration. Additionally, recalibration is required immediately after the device suffers a shock, impact, or repair. astm e83 pdf
Some of the key benefits of using ASTM E83 include: The process of verifying an extensometer to ASTM