BS ISO 14507:2003
土质.有机污物测定用样品的预处理

Soil quality - Pretreatment of samples for determination of organic contaminants

标准号

BS ISO 14507:2003

发布

2003年

发布单位

英国标准学会

当前最新

BS ISO 14507:2003

 

 

被代替标准

96/520040 DC:1996

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.

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