BS ISO 14507:2003

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
   4.1 Sampling
   4.2 Volatile compounds
   4.3 Moderately volatile compounds
5 Reagents
6 Apparatus
7 Preservation and storage
8 Procedure
   8.1 General
   8.2 Volatile compounds (boiling point < 300 degree C)
   8.3 Moderately volatile organic compounds (boiling point >
        300 degree C) - Grinding necessary
   8.4 Moderately volatile organic compounds (boiling point >
        300 degree C) - Grinding not possible or not necessary
   8.5 Blank measurements
9 Test report
Annex A (informative) Information concerning vapour pressure,
        boiling and melting points of volatile organic compounds
Annex B (informative) Validation
Bibliography

Defines methods for the pretreatment of soil samples in the laboratory prior to the determination of organic contaminants.

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 2mm 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 2mm 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 ISO11464.