土壤质量.土壤和土壤原料连续化学和毒物学测试用浸出过程的指南

[中文适用范围]： 本国际标准为在影响评估框架内或为合规和比较目的而适当使用土壤和土壤材料浸出试验提供指导，以确定浸出行为，包括以下信息： - 根据要解决问题的性质和不同试验的具体特点选择浸出试验； - 解释试验结果； - 试验的局限性。在这方面，重要的是要记住，浸出试验的目的不是模拟真实的现场条件，而是为解决本国际标准中描述的不同目的而设计的固相和液相之间的接触。本国际标准仅涉及天然、污染和农业土壤和土壤材料。本国际标准不涉及与废物浸出有关的问题。它也不涉及污染物对生物体的生物利用度主题，该主题由 ISO 17402 涵盖。浸出试验旨在并用于源项的特性分析。如果知道一些基本要求（例如流体动力学），则可能可以通过浸出试验解决传输问题，从而确定关键的传输参数（例如阻滞因子、颗粒促进传输、衰减过程）。在本国际标准中，当仅引用术语“土壤”以简化书写时，应考虑更广泛的术语“土壤和土壤材料”。 [外文原描述]： ISO 18772:2008 provides guidance on the appropriate use of leaching tests on soil and soil materials, in order to determine the leaching behaviour in the framework of impact assessment, or for compliance and comparison purposes, including information on the following: the choice of leaching tests, depending on the nature of the problem to be solved and the specific features of the different tests; the interpretation of the test results; the limitations of the tests. In this respect, it is important to keep in mind that leaching tests do not aim to simulate real field conditions, but are designed to address the contact between a solid and a liquid phase for different purposes that are described in ISO 18772:2008. ISO 18772:2008 only concerns natural, contaminated and agricultural soils and soil materials. Questions relating to the leaching of wastes are not covered by ISO 18772:2008. It also does not cover the subject of bioavailability of contaminants to living organisms, which is covered by ISO 17402.