Astm E83 Pdf Jun 2026
Extensometer systems are classified based on their maximum error in strain measurement, allowing users to select the appropriate precision for their test. The classifications range from high to lower accuracy:
If the system is moved to a new machine, dropped, or undergoes significant maintenance.
Understanding ASTM E83: The Standard Practice for Verification and Classification of Extensometer Systems
In materials testing, precision is everything. Whether you are testing the tensile strength of an aerospace alloy or the elasticity of a medical-grade polymer, the accuracy of your stress-strain data hinges on a single, critical instrument: the extensometer. astm e83 pdf
: The technician applies known displacements using the calibrator and records the output from the extensometer. ASTM E83 requires a minimum of two verification runs, consisting of at least five displacement points spaced across the testing range.
By respecting the standard and using the correct digital format, you ensure that every tensile test, every material certification, and every product you ship stands on a foundation of measurable, defensible truth.
And yet, she realized, it was one of the most honest documents she’d ever read. It didn’t promise breakthroughs or patents or glory. It promised only this: If you follow me, you won’t be lying to yourself. Extensometer systems are classified based on their maximum
: Systems are classified into different grades (e.g., Class A, B-1, B-2, C, D, or E) based on their maximum error and sensitivity.
Many laboratories operating internationally need to understand the relationship between ASTM E83 and the international standard (Metallic materials — Calibration of extensometer systems used in uniaxial testing). While both standards address similar topics, there are important differences:
Successively lower accuracy tiers for general material testing. MTS Systems Recent Updates (ASTM E83-23) The latest significant revision, ASTM E83-23 , introduced Whether you are testing the tensile strength of
The primary goal is to provide a uniform method for verifying the accuracy of extensometer systems, ensuring that strain measurements are traceable to national standards.
The ASTM E83 standard outlines a comprehensive framework for evaluation. It breaks down into several core areas: 1. Scope and Application
An ASTM E83 verification cannot be performed using standard tools. It requires a specialized calibration apparatus, often called an or micrometer drum , which itself must be certified and traceable to a national metrology institute like NIST. Step-by-Step Procedure:
