ISO/TS 21268-3:2007 土壤质量 土壤和土壤物质的后续化学与生态毒性测试的过滤规程 第3部分：上流式渗滤试验
标准编号：ISO/TS 21268-3:2007
中文名称：土壤质量 土壤和土壤物质的后续化学与生态毒性测试的过滤规程 第3部分：上流式渗滤试验
英文名称：Soil quality — Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials — Part 3: Up-flow percolation test
发布日期：2007-07
标准范围
ISO/TS 21268-3:20 07规定了一项测试，旨在确定土壤和土壤材料中无机和有机成分的浸出行为。该方法是在流速标准化条件下用水（0,001 mol/l CaCl2）进行一次渗滤试验。材料在动态水力条件下浸出。获得的洗脱液可用于确定土壤关于微生物、植物和动物的生态特性。当接近材料和浸出剂之间的局部平衡时，测试结果能够区分不同的释放模式，例如在与基质相互作用影响下的洗出和释放。该试验方法产生洗脱液，随后可根据现有标准方法通过物理、化学和生态毒理学方法对其进行表征。洗脱液分析的结果作为液/固比的函数呈现。该试验不适用于在环境条件下挥发性的物质。仅应用该测试方法不足以确定材料在不同于测试程序的特定条件下的浸出行为，因为这通常需要应用几种测试方法、行为建模和模型验证。ISO/TS 21268-3:20 07没有解决与健康和安全相关的问题。它仅确定第4条中概述的浸出特性。
ISO/TS 21268-3:2007 specifies a test, which is aimed at determining the leaching behaviour of inorganic and organic constituents from a soil and soil material. The method is a once-through percolation test with water (0,001 mol/l CaCl2) under standardized conditions of flow rate. The material is leached under dynamic hydraulic conditions. The eluates obtained can be used to determine the ecological properties of the soil with respect to micro-organisms, flora and fauna. The test results enable the distinction between different release patterns, for instance wash-out and release under the influence of interaction with the matrix, when approaching local equilibrium between material and leachant.This test method produces eluates, which can subsequently be characterised by physical, chemical and ecotoxicological methods in accordance with existing standard methods. The results of eluate analysis are presented as a function of the liquid/solid ratio. The test is not suitable for species that are volatile under ambient conditions.The application of this test method alone is not sufficient for the determination of the leaching behaviour of a material under specified conditions different to those from the test procedure, since this generally requires the application of several test methods, behavioural modelling and model validation. ISO/TS 21268-3:2007 does not address issues related to health and safety. It only determines the leaching properties as outlined in Clause 4.
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