Detail the exact manufacturer, model, and serial number of the extensometer system.
The you are testing (metals, plastics, composites, etc.)
The highest accuracy, with a maximum permissible error of
Many commercial extensometers are now certified to meet both standards, with manufacturers often stating that their devices meet "ASTM E83 Class B-1 and ISO 9513 Class 0.5" requirements.
The extensometer, calibrator, and environment must sit in a temperature-controlled room (typically ) long enough to eliminate thermal expansion errors. astm e83 pdf
If you are searching for an , this guide explores what the standard covers, why it matters, and how to interpret its classification system. 🏗️ What is ASTM E83?
What of extensometer (e.g., Class B-1, Class C) your testing standard requires?
If you need to access the ASTM E83 PDF, you can try the following:
While the ASTM E83 PDF is a copyrighted document that must be purchased through official channels, the investment is minimal compared to the cost of incorrect material property determinations or failed quality audits. The current edition, ASTM E83-25, represents the latest thinking in extensometer verification and should be the reference for all new testing programs. Detail the exact manufacturer, model, and serial number
of the strain. Frequently used for determining modulus of elasticity. Moderate accuracy, with a maximum error of of the strain. Common in many tensile testing scenarios. Class C: Standard accuracy, with a maximum error of of the strain. Class D: Lower accuracy, with a maximum error of of the strain, used for less critical strain measurements. Why You Need the Official ASTM E83 PDF
: It is specifically for systems with "definite gauge points" and does not apply to bonded resistance strain gages (which are covered by ASTM E251). Afnor EDITIONS Classification System
The verification apparatus must provide a means for to a simulated specimen and measuring those displacements with high accuracy. This is typically a micrometer-driven fixture or a specialized calibrator. The apparatus is often traceable to national standards.
Used for larger strain measurements, elastomer testing, or rough crosshead travel verifications where high precision is not required. Calibration and Verification Procedure If you are searching for an , this
The outlines a standardized methodology to verify these systems. It establishes a controlled procedure where known, highly precise displacements are applied to the extensometer using a verified calibration apparatus. The errors between the displacement applied and the displacement read by the extensometer are then analyzed to assign a performance class. Key Revisions: ASTM E83-23 vs. ASTM E83-25
E83 Standard Practice for Calibration, Verification ... - ASTM
To ensure these measurements are globally consistent and accurate, the American Society for Testing and Materials (ASTM) established . This standard practice defines how to verify and classify extensometer systems.
This article provides a comprehensive overview of ASTM E83, its classification systems, verification procedures, and why obtaining the official document is essential for testing laboratories. What is ASTM E83?