1.1 本规程涵盖了固体废物浸出程序，以获得水溶液，用于确定在规定试验条件下浸出的成分。 1.2 本规程规定了用规定成分的水摇动已知质量的废物，并分离水相进行分析。 1.3 以国际单位制表示的数值应视为标准值。括号中给出的值是英寸-磅单位的数学转换，仅供参考，不被视为标准值。 1.4 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。 1.5 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====== 4.1 本规程旨在作为获得固体废物提取物的快速方法。提取物可用于在本程序所述的实验室条件下估计固体废物成分的释放。 4.2 本规程的目的不是提供代表现场固体废物产生的实际渗滤液的提取物，也不是生产用作工程设计唯一依据的提取物。 4.3 本实践旨在模拟现场特定的浸出条件。尚未证明能够模拟实际的处置场浸出条件。 4.4 本实践的目的是，提取物的最终pH值反映了萃取剂与固体废物缓冲能力的相互作用。 4.5 本实践的目的是水提取模拟固体废物是决定提取物pH值的主要因素的条件。 4.6 该机构生产的提取物适用于主要成分和次要成分的测定。当测定次要成分时，尤其重要的是在样品储存和处理过程中采取预防措施，以避免样品可能受到污染。 4.7 尚未测试该做法对有机物质和挥发性物质的适用性。

1.1 This practice covers a procedure for leaching of solid waste to obtain an aqueous solution to be used to determine the constituents leached under the specified testing conditions. 1.2 This practice provides for the shaking of a known mass of waste with water of specified composition and the separation of the aqueous phase for analysis. 1.3 The values stated in SI units are to be regarded as standard. Values given in parentheses are mathematical conversions to inch-pound 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 ====== 4.1 This practice is intended as a rapid means for obtaining an extract of solid waste. The extract may be used to estimate the release of constituents of the solid waste under the laboratory conditions described in this procedure. 4.2 This practice is not intended to provide an extract that is representative of the actual leachate produced from a solid waste in the field or to produce extracts to be used as the sole basis of engineering design. 4.3 This practice is not intended to simulate site-specific leaching conditions. It has not been demonstrated to simulate actual disposal site leaching conditions. 4.4 The intent of this practice is that the final pH of the extract reflects the interaction of the extractant with the buffering capacity of the solid waste. 4.5 The intent of this practice is that the water extraction simulates conditions where the solid waste is the dominant factor in determining the pH of the extract. 4.6 The practice produces an extract that is amenable to the determination of both major and minor constituents. When minor constituents are being determined, it is especially important that precautions are taken in sample storage and handling to avoid possible contamination of the samples. 4.7 The practice has not been tested for applicability to organic substances and volatile matter.