Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
4.1 Water, free of volatile organic compounds
4.2 Internal standard compounds
4.3 Volatile aromatic hydrocarbons
4.4 Volatile halogenated hydrocarbons
4.5 Aliphatic ethers
4.6 Methanol (CAS-No. 67-56-1)
4.7 Carrier gases for gas chromatography
4.8 Standard solutions
5 Apparatus
5.1 Glass vials with suitable septum
5.2 Crimping pliers
5.3 Headspace system
5.4 Shaking machine
5.5 Capillary columns
5.6 Gas chromatograph
5.7 Electronic integrator or computer with
chromatographic soft ware
5.8 Syringe, volume 5 [mu]l, 10 [mu]l, 50 [mu]l ,
100 [mu]l, 250[mu]l and 500 [mu]l
6 Sampling, preservation and sample pre-treatment
6.1 General
6.2 Addition of methanol in the field
6.3 Sampling using coring tube method
7 Procedure
7.1 Blank determination
7.2 Extraction
7.3 Procedure
7.4 Gas chromatographic analysis
8 Calculation
8.1 Calculation of the concentration of a volatile
compound in the water sample
8.2 Calculation of the concentration of a volatile
compound in the soil sample
9 Expression of results
10 Precision
11 Report
Annex A (informative) - Relative retention times with respect
to ethylbenzene-D10 of volatile aromatic hydrocarbons
and volatile halogenated hydrocarbons on following
columns: CP-Sil 5 CB and CP-Sil 13 CB
Annex B (normative) - Check on internal standards
Annex C (informative) - Validation (general)
Annex D (informative) - Validation for the pathway
soil - humans
Bibliography