1.1 This standard prescribes methods of test intended to assess resistance of glassware to thermal shock arising from a predetermined change in temperature.
1.1.1 Four methods are prescribed as follows:
Method A — for testing whole articles at temperature differences of less than 100°C,
Method B — for testing whole articles at temperature differences of 100°C or more,
Method C — for testing the rims of articles, and
Method D — for testing flat or shallow articles.
Note—Method B may also be used for testing small articles at temperature differences of less than 100°C in cases where Method A is inappropriate.
IS 6506-1972 history
1972IS 6506-1972 Thermal shock test method for glassware