This standard applies to drinking water, surface water, domestic sewage and industrial wastewater.
GB/T 7486-1987 history
1987GB/T 7486-1987 Water quality--Determination of cyanide--Part 1:Determination of total cyanide
GB/T 7486-1987 Water quality--Determination of cyanide--Part 1:Determination of total cyanide was changed to HJ 484-2009 Water quality.Determination of cyanide.Volumetric and spectrophotometry method.