1.1 该验证载荷试验方法是一种以90%置信水平确定给定玻璃试样总体在设计载荷下的断裂概率是否小于选定值的程序。它不是确定玻璃负载电阻的设计标准。实践 E1300 应用于此目的。 1.2 本试验方法描述了选择并向玻璃试样施加验证载荷、确定待测试玻璃试样数量以及从统计上评估破裂概率的仪器和程序。 本试验方法可使用本文规定的标准试验框架或用户设计的试验框架进行。 1.3 正确使用本试验方法需要了解压力测量原理，并了解推荐的玻璃安装实践。 1.4 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户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。 第节给出了具体的预防说明 7. . 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 待测试的玻璃样品应安装在四边支撑的标准测试框架中，或安装在设计用于代表特定玻璃条件的测试框架中。 5.2 窗户、幕墙和门中玻璃的荷载在大小、方向和持续时间上可能会有很大差异。可以考虑合理应用于试样或转换为等效均匀设计载荷的任何设计载荷（风、雪等）。文献中介绍了负载转换技术 ( 1. , 2. , 3. ) . 3. 5.3 玻璃的强度随许多不同因素而变化，包括表面条件、负载持续时间、几何形状、相对湿度和温度 ( 4. ) . 为了解释本试验方法的结果，需要彻底了解这些强度变化。

1.1 This proof load test method is a procedure to determine, with a 90 % confidence level, if the probability of breakage under design loads for a given population of glass specimens is less than a selected value. It is not intended to be a design standard for determining the load resistance of glass. Practice E1300 shall be used for this purpose. 1.2 This test method describes apparatus and procedures to select and apply a proof load to glass specimens, to determine the number of glass specimens to be tested, and to evaluate statistically the probability of breakage. This test method may be conducted using the standard test frame specified herein or a test frame of the user's design. 1.3 Proper use of this test method requires a knowledge of the principles of pressure measurement and an understanding of recommended glazing practices. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 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. Specific precautionary statements are given in Section 7 . 1.6 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 Glass specimens to be tested shall be mounted in a standard test frame with four sides supported, or in a test frame designed to represent specific glazing conditions. 5.2 Loads on glass in windows, curtain walls, and doors may vary greatly in magnitude, direction, and duration. Any design load (wind, snow, etc.) that can reasonably be applied to the test specimens or transformed into an equivalent uniform design load can be considered. Load transformation techniques are addressed in the literature ( 1 , 2 , 3 ) . 3 5.3 The strength of glass varies with many different factors including surface condition, load duration, geometry, relative humidity, and temperature ( 4 ) . A thorough understanding of those strength variations is required to interpret results of this test method.