ASTM C770-16(2020) PDF

Scope: 1.1 This test method covers procedures for determining the stress-optical coefficient of glass, which is used in photoelastic analyses. In Procedure A the optical retardation is determined for a glass fiber subjected to uniaxial tension. In Procedure B the optical retardation is determined for a beam of glass of rectangular cross section when subjected to four-point bending. In Procedure C, the optical retardation is measured for a beam of glass of rectangular cross-section when subjected to uniaxial compression. 1.2 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. 1.3 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 C770-16(2020) Referenced Document

ASTM C1426 Standard Practices for Verification and Calibration of Polarimeters
ASTM C336 Standard Test Method for Annealing Point and Strain Point of Glass by Fiber Elongation
ASTM C598 Standard Test Method for Annealing Point and Strain Point of Glass by Beam Bending
ASTM F218 Standard Test Method for Analyzing Stress in Glass

2020 ASTM C770-16(2020) Standard Test Method for Measurement of Glass Stress—Optical Coefficient
2016 ASTM C770-16 Standard Test Method for Measurement of Glass Stress—Optical Coefficient
1998 ASTM C770-98(2013) Standard Test Method for Measurement of Glass Stressmdash;Optical Coefficient
1998 ASTM C770-98(2008) Standard Test Method for Measurement of Glass Stress8212;Optical Coefficient
1998 ASTM C770-98(2003) Standard Test Method for Measurement of Glass Stress8212;Optical Coefficient
1998 ASTM C770-98 Standard Test Method for Measurement of Glass Stress--Optical Coefficient