1.1 这些试验方法包括评估涂层的耐热性能，该涂层旨在保护在使用寿命期间暴露于高温的钢表面。两种测试方法描述如下: 方法A——内部服务涂层 方法B——外部服务涂层 1.2 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.3 本标准无意解决与其使用相关的安全问题（如有）。使用本标准的人有责任在使用前咨询并建立适当的安全、健康和环境实践，并确定监管限制的适用性。 第节给出了具体的危害说明 5. . 1.4 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《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 4.1 一些涂层系统是为在使用寿命期间暴露于高温的钢而开发的。该方法提供了测定这些涂层系统性能的加速方法。包括用于室内服务的涂层测试，以及用于室外（天气暴露）服务的涂层的测试。

1.1 These test methods cover the evaluation of the heat-resistant properties of coatings designed to protect steel surfaces exposed to elevated temperatures during their service life. Two test methods are described as follows: Method A—Interior Service Coatings Method B—Exterior Service Coatings 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 5 . 1.4 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 ====== 4.1 Some coating systems are developed for use over steel that is exposed to high temperatures during service life. This method provides an accelerated means of determining the performance of these coating systems. Testing of coatings designed for interior service, and of coatings designed for exterior (weather-exposed) service is included.