GB/T 5750.8-2006

This standard replaces the tetrachlorocarbon in the second part of GB/T 5750-1985. The main changes of this standard compared with GB/T 5750-1985 are as follows: — The structure is adjusted according to GB/T 1.1-2000 "Standardization Work Guidelines - Part 1: Structure and Writing Rules of Standards" and GB/T 20001.4-2001 "Standard Writing Rules - Part 4: Chemical Analysis Methods"; — The units of measurement are modified according to the requirements of national standards; — The equivalent concentration is changed to molar concentration (equivalent concentration is still retained in the redox part); — The symbols for mass concentration are changed from C to ρ, and the symbols for content are changed from M to m; — 61 test methods for 43 indicators in drinking water, including 1,2-dichloroethane, 1,1,1-trichloroethane, vinyl chloride, 1,1-1 dichloroethylene, 1,2-dichloroethylene, trichloroethylene, tetrachloroethylene, benzo[a]pyrene, acrylamide, caprolactam, bis(2-ethylhexyl)phthalate, microcystin-LR, acetonitrile, acrylonitrile, acrolein, epichlorohydrin, benzene, toluene, xylene, ethylbenzene, isopropylbenzene, chlorobenzene, dichlorobenzene, 1,2-dichlorobenzene, 1,4-dichlorobenzene, trichlorobenzene, tetrachlorobenzene, nitrobenzene, trinitrotoluene, dinitrobenzene, nitrochlorobenzene, and dinitrochlorobenzene, are added; — A capillary column gas chromatography method for tetrachlorocarbon in drinking water is added; — Appendices A and B are added.