（1）本技术规范规定了上流渗透试验（PT），适用于确定颗粒状建筑产品中无机和非挥发性有机物质的浸出行为。该测试不适合在环境条件下挥发的物质。施工产品在规定的渗滤条件下，用水作为液固比的函数进行渗滤。该方法是一次直通柱浸出试验。 （2）该上流渗透试验是在建筑产品的规定试验条件下进行的，不一定会产生模拟具体使用条件的结果。该试验方法产生洗脱液，其随后可以根据现有标准方法通过物理，化学和生态毒理学方法进行表征。洗脱液分析的结果表示为液/固比的函数。测试结果能够区分不同的浸出行为。 注1挥发性有机物质包括矿物油等混合物中的低分子量物质。 注2:对于无机和有机物质，并不总是可以同时调整测试条件，测试条件也可能因不同组别​​而异

(1) This Technical Specification specifies an Up-flow Percolation Test (PT) which is applicable to determine the leaching behaviour of inorganic and non-volatile organic substances from granular construction products. The test is not suitable for substances that are volatile under ambient conditions. The construction products are subjected to percolation with water as a function of liquid to solid ratio under specified percolation conditions. The method is a once-through column leaching test. (2) This up-flow percolation test is performed under specified test conditions for construction products and does not necessarily produce results that mimic specific intended use conditions. This test method produces eluates, which can subsequently be characterized by physical, chemical and ecotoxicological methods according to existing standard methods. The results of eluate analysis are presented as a function of the liquid/solid ratio. The test results enable the distinction between different leaching behaviour. NOTE 1 Volatile organic substances include the low molecular weight substances in mixtures such as mineral oil. NOTE 2 It is not always possible to adjust test conditions simultaneously for inorganic and organic substances and test conditions may also vary between different groups of organic substances. Test conditions for organic substances are generally more stringent than those for inorganic substances. The test conditions are generally described in a way that they fit testing organic substances and are also applicable to inorganic substances depending on the set-up. NOTE 3 For ecotoxicity testing, eluates representing the release of both inorganic and organic substances are needed. In this document, ecotoxicological testing is meant to include also genotoxicological testing. Construction products that exhibit a saturated hydraulic conductivity of about 10−8 m/s or higher can usually be subjected to this test. This procedure is also applicable to materials showing solidification in the column, if the final hydraulic conductivity is within the specified range. Inert granular material should not be added to improve permeability in order to enable their testing. NOTE 4 This procedure is generally not applicable to products that are easily biologically degradable and products reacting with the leachant, leading, for example, to excessive gas emission or excessive heat release, impermeable hydraulically bound products or products that swell in contact with water.