Improved residual chlorine test; the ortho-toluidine: arsenite method for testing water for true, false and chloramine residuals.
D018053:Arsenites; D002700:Chloramines; D002713:Chlorine; D014052:Toluidines; D018508:Water Purification
D018053:Arsenites; D002700:Chloramines; D014052:Toluidines; D002713:Chlorine; C023622:2-toluidine; C030816:chloramine; C015001:arsenite
WATER/purification