BS ISO 14507-2003 土质.有机污物测定用样品的预处理

标准号：BS ISO 14507-2003
中文标准名称：土质.有机污物测定用样品的预处理
英文标准名称：Soil quality - Pretreatment of samples for determination of organic contaminants
标准类型：B11
发布日期：2003/4/11 12:00:00
实施日期：2003/4/11 12:00:00
中国标准分类号：B11
国际标准分类号：13.080.01
适用范围：This International Standard specifies three methods for the pretreatment of soil samples in the laboratory prior to the determination of organic contaminants: — if volatile organic compounds are to be measured; — if moderately volatile to non-volatile organic compounds are to be measured, if the result of the subsequent analysis must be accurate and reproducible, and if the sample contains particles larger than 2 mm and/or the contaminant is heterogeneously distributed; — if non-volatile organic compounds are to be measured and the extraction procedure prescribes a field-moist sample, or if the largest particles of the sample are smaller than 2 mm and the contaminant is homogeneously distributed. This procedure is also applicable if reduced accuracy and repeatability are acceptable. The pretreatment described in this International Standard is used in combination with an extraction procedure in which the contaminant is available for the extraction liquid. NOTE For the pretreatment of soil samples for the purposes of determining non-volatile inorganic compounds and physico-chemical soil characteristics, see ISO 11464.