1.1 本试验方法涵盖了确定固体废物试样反复润湿和干燥产生的材料损失的程序。它还涵盖了固体试样分解的视觉观察。 1.2 该测试方法旨在使程序中使用的材料在物理、化学和生物学上具有代表性；因此，它没有解决由于试样不均匀性而产生的问题。 1.3 以国际单位制表示的值应被视为标准值。本标准不包括其他计量单位。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。本标准的使用者有责任在使用前建立适当的安全、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====== 3.1 本试验方法旨在评估在本试验方法的试验条件下，整体、固体、固化/稳定废物的耐湿性和耐干燥性。 3.2 该试验方法可用于比较废物的耐湿性和耐干燥性。 3.3 表1中列出的数据 ，表2 ，以及表3 可用于观察由试样不均匀性引起的不规则性，或比较不同废物的质量损失-循环关系，或两者兼而有之，以及测量方法- 相关的质量损失，如基质溶解。

1.1 This test method covers procedures for determining material losses produced by repeated wetting and drying of solid waste specimens. It also covers the visual observation of the disintegration of solid specimens. 1.2 This test method intends that the material used in the procedure be physically, chemically, and biologically representative; hence it does not address problems as a result of the inhomogeneity of specimens. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 ====== 3.1 This test method is intended for the evaluation of the wetting and drying resistance of monolithic, solid, solidified/stabilized wastes under the testing conditions of this test method. 3.2 This test method may be used for the comparison of wetting and drying resistance of wastes. 3.3 Data tabulated in Table 1 , Table 2 , and Table 3 may be used to observe irregularities caused by inhomogeneity of specimens, or comparison of mass loss–cycle relations of different wastes, or both, as well as to measure method-related mass losses such as matrix dissolution.