1.1 这种做法复制了瓷砖装置的低角度观察条件。 1.2 以英寸磅为单位的数值应视为标准。括号中的值仅供参考。 1.3 此定性实践旨在提供制造层面的一般指导，以确定产品在典型的最终使用条件下是否可接受。 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====== 4.1 作为设计美学的一部分，一些瓷砖表面在低角度条件下可能会出现变化。 4.2 这种做法适用于设计成在低角度条件下具有整体均匀外观的瓷砖。

1.1 This practice replicates low angle viewing conditions on ceramic tile installations. 1.2 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are for information only. 1.3 This qualitative practice is intended to provide general guidance at the manufacturing level to determine if product will be acceptable under typical end use conditions. 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 ====== 4.1 Some tile surfaces may exhibit variations under low angle conditions as part of the designed aesthetic. 4.2 This practice is intended for tiles that are designed to have an overall uniform appearance under low angle conditions.