Soil quality. Gas chromatographic determination of volatile aromatic and halogenated hydrocarbons and selected ethers. Static headspace method (ISO 22155:2016)
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ISO 22155:2016 specifies a static headspace method for quantitative gas chromatographic determination of volatile aromatic and halogenated hydrocarbons and selected aliphatic ethers in soil. ISO 22155:2016 is applicable to all types of soil. The limit of quantification is dependent on the detection system used and the quality of the methanol grade used for the extraction of the soil sample. Under the conditions specified in this International Standard, the following limits of quantifications apply (expressed on basis of dry matter). Typical limit of quantification when using GC-FID: - volatile aromatic hydrocarbons: 0,2 mg/kg; - aliphatic ethers as methyl tert.-butyl ether(MTBE) and tert.-amyl methyl ether (TAME): 0,5 mg/kg. Typical limit of quantification when using GC-ECD: - volatile halogenated hydrocarbons: 0,01 mg/kg to 0,2 mg/kg. Lower limits of quantification for some compounds can be achieved by using mass spectrometry (MS) with selected ion detection (see Annex D).
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Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sampling, preservation, and sample pretreatment
6.1 General
6.2 Sampling using vials pre-filled with methanol
6.3 Sampling using coring tube method
7 Procedure
7.1 Blank determination
7.2 Extraction
7.3 Head-space analysis
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 Test report
Annex A Relative retention times with respect to ethylbenzene-D10 of volatile aromatic hydrocarbons and volatile halogenated hydrocarbons — Examples of suitable target and qualifier ions (informative)
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 Test report
Annex A Relative retention times with respect to ethylbenzene-D10 of volatile aromatic hydrocarbons and volatile halogenated hydrocarbons — Examples of suitable target and qualifier ions (informative)
ISO 10381-1:2002 Soil quality -- Sampling -- Part 1: Guidance on the design of sampling programmes
ISO 10381-2:2002 Soil quality -- Sampling -- Part 2: Guidance on sampling techniques
ISO 11465:1993 Soil quality -- Determination of dry matter and water content on a mass basis -- Gravimetric method
ISO 10381-1:2002 Soil quality -- Sampling -- Part 1: Guidance on the design of sampling programmes
ISO 10381-2:2002 Soil quality -- Sampling -- Part 2: Guidance on sampling techniques
ISO 11465:1993 Soil quality -- Determination of dry matter and water content on a mass basis -- Gravimetric method
ISO 15680:2003 Water quality -- Gas-chromatographic determination of a number of monocyclic aromatic hydrocarbons, naphthalene and several chlorinated compounds using purge-and-trap and thermal desorption
ISO 18512:2007 Soil quality -- Guidance on long and short term storage of soil samples
ISO 22892:2006 Soil quality -- Guidelines for the identification of target compounds by gas chromatography and mass spectrometry