1.1 本试验方法涵盖了现场或实验室试验中混凝土板相对湿度百分比的定量测定。 1.2 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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。 第节给出了具体警告 7. , 10.3.2 和 10.4.4 . 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《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 安装地板覆盖物后，地板中的水分过多可能会导致地板覆盖系统故障，如脱胶、峰值、饰面地板和涂料劣化以及微生物生长。 5.2 此类系统的制造商通常要求在混凝土上安装之前进行水分测试。 内部相对湿度测试就是这样一种方法。 5.3 水分测试结果表明，只有在测试时和测试的特定位置，混凝土板的水分状况。

1.1 This test method covers the quantitative determination of percent relative humidity in concrete slabs for field or laboratory tests. 1.2 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. 1.3 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. Specific warnings are given in Section 7 , 10.3.2 , and 10.4.4 . 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 ====== 5.1 Excessive moisture in floor slabs after floor covering has been installed can cause floor covering system failures such as debonding, peaking and deterioration of finish flooring and coatings and microbial growth. 5.2 Manufacturers of such systems generally require moisture testing to be performed before installation on concrete. Internal relative humidity testing is one such method. 5.3 Moisture test results indicate the moisture condition of the slab only at the time of the test and in the specific locations tested.