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标题: ASTM E1195-2001(2008) 测定土壤和沉积物中有机化学制品下载 [打印本页]

作者: sigh007 时间: 2013-3-6 19:30:57 标题: ASTM E1195-2001(2008) 测定土壤和沉积物中有机化学制品下载

中文名称: 测定土壤和沉积物中有机化学制品吸收常数的试验方法

英文名称:Standard Test Method for Determining a Sorption Constant (Koc) for an Organic Chemical in Soil and Sediments

中标分类：B11	ICS分类：13.080.10
标准分类编号：AS	页数：9

发布日期：	实施日期：2001-10-10	作废日期：
被替代标准：		代替标准：ASTM E1195-2001
引用标准：ASTM D1193;ASTM D421;ASTM D4129;ASTM D422;OECD		采用标准：
起草单位：		归口单位：

标引依据：

补充修订：

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范围：1.1 This test method describes a procedure for determining the partitioning of organic chemicals between water and soil or sediment. The goal is to obtain a single value which can be used to predict partitioning under a variety of environmental conditions from the measurement of sorption coefficients for specific solids. 1.2 Sorption represents the binding process of chemicals to surfaces of soils or sediments through chemical, or physical, or both interactions. 1.3 The sorption of nonpolar organic chemicals, and to some extent polar organic chemicals, is correlated with the organic carbon content of the sorbing solid. Charged inorganic and organic molecules may behave differently, and some other property, such as, cation exchange capacity, clay content, or total surface area of sorbing solids, may influence sorption. Hydrous metal oxides of iron and aluminum may significantly affect sorption in sediments. In order to provide a sorption coefficient that is useful for a wide range of so

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