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If an extensometer miscalculates strain, calculations for Yield Strength, Young’s Modulus (Modulus of Elasticity), and Elongation at Break will be incorrect.
ASTM E83 is a standard practice established by ASTM International that outlines the procedures for the . astm e83 pdf
of the measured strain value. Used in extremely high-precision applications. High-accuracy, with a maximum error of Used in extremely high-precision applications
The allowable variance in the initial distance between the extensometer's contact points. "The ASTM E83 standard from ASTM International is
The standard requires the test to be conducted within a specific temperature range (usually 20°C ± 2°C or similar) because thermal expansion can affect the calibration of both the extensometer and the reference standard.
"The ASTM E83 standard from ASTM International is the definitive guide for extensometer verification. The PDF is easy to navigate with a clickable table of contents, which is helpful since the technical jargon is quite dense. It’s not a 'how-to' for beginners, but for confirming that your strain data meets industry requirements, there is no substitute. Be prepared for a lot of math regarding error tolerances." Academic/Student Review