GB/T 5750.10-2006

This standard replaces the trichloromethane in Part II of GB/T 5750-1985 "Standard Test Methods for Living Drinking Water". The main changes compared with GB/T 5750-1985 are as follows: — The structure has been adjusted according to GB/T 1.1-2000 "Guidelines for Standardization Work - Part 1: Structure and Writing Rules for Standards" and GB/T 20001.4-2001 "Rules for Standard Writing - Part 4: Chemical Analysis Methods"; — The units of measurement have been modified according to national standards requirements; — The equivalent concentration has been changed to molar concentration (equivalent concentration is still retained in the oxidation-reduction section); — The symbol for mass concentration has been changed from C to ρ, and the symbol for content has been changed from M to m; — Eighteen test methods for 13 indicators (trichloromethane, dichloromethane, monochlorodibromomethane, chloroform, formaldehyde, acetaldehyde, trichloroacetaldehyde, dichloroacetic acid, trichloroacetic acid, cyanide, 2,4,6-trichlorophenol, chlorite, and bromate) in living drinking water have been added; — A capillary column gas chromatography method for trichloromethane in living drinking water has been added.