C1279 Test Method for Non-Destructive Photoelastic Measurement of Edge and Surface Stresses in Annealed, Heat-Strengthened, and Fully Tempered Flat Glass Standard did not have a section on the Calibration and Standardization of the measurement apparatus used, as specified in the ASTM Form and Style Manual, Section A15. As a result, C1279 was revised and balloted and approved as C1279-13 to incorporate the existing C1377 test method in its entirety, which is a description of the traceable primary calibration procedure used for the Round Robin ILS described in C1279. Therefore, the C1377 test method, which will no longer be required as a separate standard and has been very rarely used by laboratories other than the equipment manufacturer, should be withdrawn.
Keywordscalibration; stress measurements; surface stress; tempered glass; Calibration; Calibration--load testing machines; Stress; Surface-stress measuring devices;
Ballot Item Approved as C1377-1997(2009) and Pending Publication