1.1 本试验方法包括测量瓷砖转角、对角线和边缘翘曲的程序。 1.1.1 角、对角线和边缘翘曲测量的瓷砖要求 瓷砖应标称平整，整体厚度均匀，表面光滑，形状为矩形，包括正方形。 1.1.2 瓷砖转角翘曲测量要求 所有面部边缘尺寸等于或大于2.36 英寸（60 mm）的长度。 1.1.3 瓷砖边缘和对角线翘曲测量要求 所有面部边缘尺寸等于或大于2 在里面 (51 mm）的长度。 1.1.4 贴面瓷砖 符合中的描述 1.1.1 – 1.1.3 只是瓷砖表面只有一部分是平的。（只要可能，表面装饰瓷砖应视为平瓷砖。） 1.2 该试验方法不适用于具有非平面压花表面或具有可变主体厚度和不规则表面组合的瓷砖。 1.3 以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 1.4 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。 1.5 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 该试验方法提供了一种方法来确定大量瓷砖是否符合规范中可能出现的翘曲要求，以确保瓷砖安装令人满意。根据该试验方法，翘曲度按试验边缘或对角线长度的百分比计算。可以意识到，基于瓦片的总边缘长度或总对角线长度的百分比值将略低于基于参考点之间的距离的百分比值。 然而，对于任何特定尺寸的瓷砖，总长度与参考点之间的距离的比率实际上都是恒定的，因此，百分比值将是可比较的，并且同样指示翘曲。

1.1 This test method covers procedures for measuring the corner, diagonal, and edge warpages of ceramic tile. 1.1.1 Tile Requirements for Corner, Diagonal, and Edge Warpage Measurement Tile should be nominally flat, uniform in overall thickness, smooth faced, and rectangular in shape, including square. 1.1.2 Tile Requirements for Corner Warpage Measurement All facial edge dimensions equal to or greater than 2.36 in. (60 mm) in length. 1.1.3 Tile Requirements for Edge and Diagonal Warpage Measurement All facial edge dimensions equal to or greater than 2 in. (51 mm) in length. 1.1.4 Trim Tile meeting the descriptions in 1.1.1 – 1.1.3 except that only a part of the tile surface is flat. (Surface trim tile should be treated as flat tile whenever possible.) 1.2 This test method is not applicable to tile having embossed surfaces that are not flat, or that have a combination of variable body thickness and an irregular face. 1.3 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. 1.4 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. 1.5 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 This test method provides a means for determining whether or not a lot of ceramic tile meets the warpage requirements that may appear in specifications to assure satisfactory tile installations. In accordance with this test method, warpage is calculated as a percentage of the length of the edge or diagonal being tested. It is realized that the percentage values based on the overall edge length, or on the overall diagonal length of a tile will be slightly lower than those based on the distance between reference points. However, the ratio of the overall lengths to the distance between reference points will be practically constant for any particular size of tile and, therefore, the percentage values will be comparable and equally indicative of warpage.