Extensometers are classified based on the magnitude of their measurement errors. Common classifications include
This standard is critical in industries where material properties—such as Young’s Modulus, yield strength, and elongation at break—must be reported with high confidence. It ensures that a tensile test performed in a laboratory in Germany yields the same data as one performed in the United States, provided the extensometers meet the same ASTM E83 classification.
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Calibration laboratories must follow precise ASTM guidelines to maintain ISO/IEC 17025 or NADCAP accreditations.
Which (e.g., Class B-1) your testing specification requires astm e83 pdf
In the world of material testing, obtaining precise, reliable data regarding a material’s elasticity, ductility, and strength is paramount. When performing tensile or compressive tests, the instrument responsible for measuring these small changes in length—strain—is known as an extensometer. However, how do you know if your extensometer is giving you the correct reading? That is where the comes in.
Access exact formulas and tables detailing maximum allowable error and fixed error limits. Extensometers are classified based on the magnitude of
ASTM E83 is a standard practice that outlines the procedures for the verification and classification of extensometer systems. It establishes a strict methodology to determine the maximum permissible error for instruments used to measure axial strain during tension, compression, or fatigue testing.