1.1 本规范涵盖结构粘土非承重砖（隔墙、防火和镶边）。用于防火结构构件的瓷砖的尺寸和形状应能完全覆盖构件的外露表面。用于承重砌体的防火砖应符合规范 第34页 . 1.2 本规范的性能要求在购买时适用。使用从砌体结构中提取的瓷砖测试结果来确定是否符合性能要求（第 5. )本标准的范围超出了本规范的范围。 1.3 本规范涵盖的瓷砖由粘土、页岩或类似天然物质制成，并在高温下进行热处理（烧制）。热处理必须在颗粒成分之间形成足够的烧结粘结，以提供本规范的强度和耐久性要求。（参见 点火 和 烧结粘结 术语 第232页 .) 1.4 本规范正文引用了提供说明材料的注释和脚注。这些注释和脚注（不包括表和图中的注释和脚注）不应视为本规范的要求。 1.5 以英寸-磅单位表示的值应视为标准值。 括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准值。 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《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。

1.1 This specification covers structural clay nonloadbearing tile (partition, fireproofing, and furring). Tile intended for use in fireproofing structural members shall be of such sizes and shapes that they can be erected to completely cover the exposed surfaces of the members. Fireproofing tile intended for use in load-bearing masonry shall conform to Specification C34 . 1.2 The property requirements of this specification apply at the time of purchase. The use of results from testing of tile extracted from masonry structures for determining conformance or non-conformance to the property requirements (Section 5 ) of this standard is beyond the scope of this specification. 1.3 Tile covered by this specification are manufactured from clay, shale, or similar naturally occurring substances and subjected to a heat treatment at elevated temperatures (firing). The heat treatment must develop sufficient fired bond between the particulate constituents to provide the strength and durability requirements of this specification. (See firing and fired bond in Terminology C1232 .) 1.4 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this specification. 1.5 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. 1.6 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.