BS EN ISO 10301:1997

Section 1: General
1.1 Scope
1.2 Normative references
1.3 Definition
Section 2: Liquid/liquid extraction and analysis by
gas chromatography
2.1 Principle
2.2 Interferences
2.3 Reagents
2.4 Apparatus
2.5 Sampling and sample preparation
2.6 Procedure
2.7 Calibration
2.8 Identification and evaluation
2.9 Expression of results
2.10 Precision data
2.11 Test report
Section 3: Static headspace method and analysis by gas
chromatography
3.1 Principle
3.2 Interferences
3.3 Reagents
3.4 Apparatus
3.5 Sampling
3.6 Procedure
3.7 Calibration
3.8 Identification and evaluation
3.9 Expression of results
3.10 Precision data
3.11 Test report
Annex A (informative) Characteristics of highly volatile
halogenated hydrocarbons
Annex B (informative) Examples of gas chromatograms for
highly volatile halogenated hydrocarbons
Annex C (informative) Example of a microseparator
Annex D (informative) Sensitivity of electron-capture
detector
Annex E (informative) Extraction recovery with pentane
Annex F (informative) Qualitative method for testing the
quality of "penicillin type" stoppers
Annex G (informative) Collection of samples

Defines two methods for determining highly volatile halogenated hydrocarbons by means of gas chromatography. ALSO NUMBERED AS BS 6068 SECTION 2.58 1997

This International Standard specifies two methods for the determination of highly volatile halogenated hydrocarbons using gas chromatography. Section2 specifies a method for the determination by liquid/liquid extraction of highly volatile halogenated hydrocarbons in drinking water, ground water, swimming pool water, most rivers and lakes and many sewage and industrial effluents. Typical values of \'quantification limits\' are given in table1. Table1 Typical values of \'quantification limits\' for some highly volatile halogenated hydrocarbons using liquid/liquid extraction Compound Quantification limits
μ9/l Dichloromethane 50 Chloroform 0,05 - 0,3 Carbon tetrachloride o 01p 1,1-Dichloroethane 1,0-5 1,2-Dichloroethane 5-10 1,1,1-Trichloroethane 0,02 - 0,1 1,1,2,2-T etrachloroethane 0,05 - 0,1 Hexachloroethane 0,01 - 0,05 cis-1,2-Dichloroethylene 5-50 trans,2-Dichloroethylene 1 - 10 Trichloroethylene 0,05-0,1 Tetrachloroethylene 0,1 Hexachlorobutadiene 0,01 Tribromomethane 0,1 1,1,2-Trichlorotrifluoroethane 0,1 Section3 specifies a method for the determination of highly volatile halogenated hydrocarbons in drinking water, surface waters and ground water by a static headspace method. Typical values of \'quantification limits\' are given in table2. In practise, the head-space method is applicable for industrial effluents as a screening method, but in some cases it is necessary to confirm the result by the liquid-liquid extraction method. NOTE: When applying this International Standard, the guide on analytical quality control for water analysis (see ISO/TR13530) should be followed, especially for the calibration steps. Table2 Typical values of \'quantification limits\' for some highly volatile halogenated hydrocarbons using static head-space method Compound Quantification limits
μ9/I Dichloromethane 50 Chloroform 0,3 Carbon tetrachloride 0,1 1,1-Dichloroethane 100 1,2-Dichloroethane 100 1,1,1-Trichloroethane 0,1 1,1,2-Trichloroethane 20 1,1-Dichloroethylene 10 cis-1,2-Dichloroethylene 50 trans-1 ,2-Dichloroethylene 25 Trichloroethylene 0,2 Tetrachloroethylene 0,2 1,2-Dichloropropane 50 1,3-Dichloropropane 200 cis+trans-1,3-Dichloropropylene 10 Dibromomethane 0,3 Tribromomethane (Bromoform) 5 1,2-Dibromoethane 2 Bromochloromethane 1 Bromodichloromethane 0,2 Dibromochloromethane 0,3 1,1,3-Trifluoroethane 1