1.1 本试验方法包括通过测量已知面积和密度的试样质量来测定厚度小于等于0.015 in.（0.38 mm）的金属箔和金属片的厚度。 1.2 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。 1.2.1 本标准中的密度以磅/英寸为单位。 3. （kg/m 3. )与铝协会发布的“铝标准和数据”中列出的内容一致。 1.3 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。 1.4 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====== 3.1 本试验方法旨在根据质量、密度和面积测定薄板或箔试样的平均厚度。它旨在用于通过传统手段（千分尺、optimiter）进行的逐点接触厚度测量不具有足够精度的情况。

1.1 This test method covers the determination of the thickness of metallic foil and sheet 0.015 in. (0.38 mm) and less in thickness by measuring the mass of a specimen of known area and density. 1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard. 1.2.1 The density within this standard is provided in units of lb/in. 3 (kg/m 3 ) to be consistent with those listed in the “Aluminum Standards and Data” published by the Aluminum Association. 1.3 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. 1.4 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 ====== 3.1 This test method is intended for determination of an average thickness of a specimen of thin sheet or foil based on mass, density, and area. It is intended to be used where pointwise contact thickness measurements by conventional means (micrometer, optimeter) do not have sufficient accuracy.