1.1 本试验方法涵盖退火、热强化和全钢化平板玻璃产品的边缘应力和表面应力的测定。 1.2 这种测试方法是无损的。 1.3 该测试方法使用透射光，因此适用于透光眼镜。 1.4 该试验方法不适用于化学钢化玻璃。 1.5 使用所述程序，只能在浮法玻璃的“锡”面上测量表面应力。 1.6 表面应力测量仪器是为特定范围的表面折射率而设计的。 1.7 以国际单位制表示的数值应视为标准。本标准不包括其他计量单位。 1.8 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.9 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 热处理过程中产生的表面应力和边缘应力对热强化全钢化玻璃的强度和性能有很大影响。 5.2 边缘和表面应力水平在规范中有规定 C1048 ，在工程标准手册中 3. GANA回火部门和国外规范。 5.3 该测试方法为无损测定退火和热处理玻璃表面和边缘的残余应力状态提供了一种直接方便的方法。

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 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 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. 1.9 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. ====== Significance And Use ====== 5.1 The strength and performance of heat-strengthened and fully-tempered glass is greatly affected by the surface and edge stress induced during the heat-treating process. 5.2 The edge and surface stress levels are specified in Specification C1048 , in the Engineering Standards Manual 3 of GANA Tempering Division and in foreign specifications. 5.3 This test method offers a direct and convenient way to non-destructively determine the residual state of stress on the surface and at the edge of annealed and heat-treated glass.