ASTM F218-13(2020) PDF

Scope: 1.1 This test method covers the analysis of stress in glass by means of a polarimeter based on the principles developed by Jessop and Friedel (1, 2).2 Stress is evaluated as a function of optical retardation, that is expressed as the angle of rotation of an analyzing polarizer that causes extinction in the glass. 1.2 There is no known ISO equivalent to this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM F218-13(2020) Referenced Document

ASTM C1426 Standard Practices for Verification and Calibration of Polarimeters
ASTM C162 Standard Terminology of Glass and Glass Products
ASTM C770 Standard Test Method for Measurement of Glass Stressmdash;Optical Coefficient
ASTM C978 Standard Test Method for Photoelastic Determination of Residual Stress in a Transparent Glass Matrix Using a Polarizing Microscope and Optical Retardation Compensation Procedures
ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

2020 ASTM F218-13(2020) Standard Test Method for Measuring Optical Retardation and Analyzing Stress in Glass
2013 ASTM F218-13 Standard Test Method for Measuring Optical Retardation and Analyzing Stress in Glass
2012 ASTM F218-12 Standard Test Method for Measuring Optical Retardation and Analyzing Stress in Glass
2005 ASTM F218-05 Standard Test Method for Analyzing Stress in Glass
1995 ASTM F218-95(2000) Standard Test Method for Analyzing Stress in Glass
2000 ASTM F218-95 Standard Test Method for Analyzing Stress in Glass