ASTM E83
The standard, titled "Standard Practice for Verification and Classification of Extensometer Systems," is a critical document for any laboratory involved in mechanical testing. It provides the framework for ensuring that extensometers—instruments used to measure small changes in the length of a material under stress—provide accurate and reliable strain data. Overview of ASTM E83
astm e83 pdf
Situation: You are testing 1018 steel to ASTM A370. Your extensometer was last calibrated 13 months ago. The clearly states in Section 8.2 that verification intervals shall not exceed one year. astm e83 pdf
Lena scrolled past the scope and terminology. Section 7: Verification Procedure. She paused. ASTM E83 The standard, titled "Standard Practice for
Classification by Accuracy
: Extensometer systems are categorized into "classes" (like Class B-1 or C) based on their maximum allowable error. For example, many high-performance tests require a Class B-1 rating to meet strict aerospace or automotive requirements. ASTM E283 : Standard test method for determining
A proper report on ASTM E83 focuses on evaluating the compliance, verification, and classification of extensometer systems.
This standard ensures that devices used to measure strain in materials yield accurate, repeatable, and linear results during tensile or compressive testing.
ASTM E83-23
As of the publication of this article, the current active version is (approved in 2023).
4. Verification Procedure (Summary)
- ASTM E283: Standard test method for determining the rate of air leakage through exterior windows, curtain walls, and doors under specified pressure differences across the specimen.
- Scope & purpose: Measures air infiltration/exfiltration (leakage) at set pressure differentials to evaluate weather performance and compliance with design/energy requirements.
- Specimens covered: Windows, skylights, doors, curtain walls, and similar fenestration assemblies.
- Test principle: Apply calibrated air pressures across a specimen in a test chamber and measure airflow; report leakage as cubic feet per minute per linear foot (cfm/ft) or cfm/ft² at specified pressures.
ASTM International Website:
Direct purchase of the latest version (currently E83-23 or newer).