GB/T 37781-2019: Test methods for bending strength of glass

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Scope

This Standard specifies the terms and definitions, principle, tests, and test
report of the tests for bending strength of glass.
The three-point bending method in this Standard applies to the test for bending
strength of brittle materials such as glass.
The four-point bending method in this Standard applies to the test for bending
strength of plate glass such as annealed glass, tempered glass, semi-tempered
glass, and embossed glass; does not apply to the test for bending strength of
composite glass such as laminated glass and insulating glass.
This Standard does not apply to the test for bending strength of glass with a
thickness of 3 mm or less.
This Standard can also be used alone to evaluate the effect of glass edge on
the bending strength.

Basic Data

Standard ID	GB/T 37781-2019 (GB/T37781-2019)
Description (Translated English)	Test methods for bending strength of glass
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	Q30
Classification of International Standard	81.040.10
Word Count Estimation	14,117
Date of Issue	2019-08-30
Date of Implementation	2020-07-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration