ASTM C1279-94
Historical Standard: ASTM C1279-94 Standard Test Method for Non-Destructive Photoelastic Measurement of Edge and Surface Stresses in Annealed, Heat-Strengthened, and Fully Tempered Flat Glass
SUPERSEDED (see Active link, below)
ASTM C1279
1. Scope
1.1 This test method covers the determination of edge stresses and surface stresses in annealed, heat-strengthened, and fully tempered flat glass products.
1.2 This test method is non-destructive.
1.3 This test method uses transmitted light and is, therefore, applicable to light-transmitting glasses.
1.4 The test method is not applicable to chemically-tempered glass.
1.5 Using the procedure described, surface stresses can be measured only on the 'tin' side of float glass.
1.6 Surface-stress measuring instruments are designed for a specific range of surface index of refraction.
1.7 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
C162 Terminology of Glass and Glass Products
C770 Test Method for Measurement of Glass Stress--Optical Coefficient
C1048 Specification for Heat-Strengthened and Fully Tempered Flat Glass
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
Other Documents
SurfaceandEdgKeywords
annealed glass; heat-strengthened glass; polariscopic examination; stress measurement; tempered glass; Annealed glass; Edge/surface stress; Flat glass; Glass; Heat-strengthened (HS) glass; Nondestructive evaluation (NDE); Nondestructive evaluation (NDE)--nonmetallic materials; Nondestructive photoelastic measurement; Polariscopic examination; Stress--glass materials/applications; Surface stress; Tempered glass;
ICS Code
ICS Number Code 81.040.20 (Glass in building)
DOI: 10.1520/C1279-94
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