Groundwater 223920 detection

Standard inspection methods for drinking water: Organic matter index 1, carbon tetrachloride 1.1, packed column gas chromatography 1.1.1 Scope: This standard specifies the use of packed column gas chromatography to determine trichloromethane, carbon tetrachloride, trichloroethylene, dichloromethane, tetrachloroethylene, dichlorodibromomethane, and tribromomethane in drinking water and its source water. This method is applicable to the determination of chloroform, carbon tetrachloride, trichloroethylene, dichloromethane, tetrachloroethylene, dichlorodibromomethane, and tribromomethane in drinking water and its source water. The minimum detection mass concentrations for this method are: 0.6 ug/L of trichloromethane; Carbon tetrachloride 0.3 ug/L; Trichloroethylene 3 pg/L; Dichlorobromomethane 1 ug/L; Tetrachloroethylene 1.2ug/L; Monochlorodibromomethane 0.3 ug/L; Tribromomethane 6 ug/L. 1.1.2 Principle: The tested water sample is placed in a sealed headspace bottle, and after a certain temperature and time of equilibrium, the halogenated water escapes into the upper space and reaches dynamic equilibrium in the gas-liquid phase. At this time, the concentration of halogenated water in the gas phase is proportional to its concentration in the liquid phase. By measuring the concentration of halogenated hydrocarbons in the gas phase, the concentration of halogenated hydrocarbons in the water sample can be calculated

Function of testing report:

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BAIJIAN testing process:

1. Telephone communication and confirmation of requirements

2. Recommend solutions and confirm quotations

3. Mail samples and arrange testing

4. Progress tracking and result feedback

5. Provide reports and after-sales service

6. If urgent or priority processing is required

Our Competitive Edge:

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8. The testing report is authoritative and effective, and is generally used in China