Water quality -- Determination of highly volatile halogenated hydrocarbons -- Gas-chromatographic methods

رقم المستند: NL ISO 10301 : 2010
القطاع: Food Technology
TC: NL TC 147
ICS: 13.060.50
This International Standard specifies two methods for the determination of highly volatile halogenated hydrocarbons using gas chromatography. Section 2 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 table 1. Table 1 - Typical values of “quantification limits“ for some highly volatile halogenated hydrocarbons using liquid/liquid extraction Compound p!ipxmq 1 Dichloromethane 150 ---1 1 Chloroform I 0,05 - 0,3 I 1 Carbon tetrachloride IO,01 - 0,l I I l,l-Dichloroethane Il,O-5 I I 1,2-Dichloroethane 15- 10 --I 1 l,l,l-Trichloroethane IO,02 - 0,l I I 1,1,2,2-Tetrachloroethane IO,05 - 0,l I I Hexachloroethane IO,01 - 0,05 I I cis-1,2-Dichloroethylene I5 - 50 ~~~ ---I 1 trans-1,2-Dichloroethylene II -10 I I Trichloroethylene IO,05 - 0,l I I Tetrachloroethylene IO1 I I I Hexachlorobutadiene I WI ---I I Tribromomethane lo 1 I I I 1,1,2-Trichlorotrifluoroethane lo1 , I Section 3 specifies a method for the determination of highly volatile halogenated hydrocarbons in drinking water, surface waters and ground water by a static head- space method. Typical values of “quantification limits” are given in table 2. 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 lSO/TR 13530) should be followed, especially for the calibration steps. NL ISO 10301:2010 IS0 10301:1997(E) 0 IS0 Table 2 - Typical values of “quantification limits” for some highly volatile halogenated hydrocarbons using static head-space method 1