Reference
Method
Test
Reagent #
Reagent Name
EPA
Spectrophotometric, DPD
Chlorine, Total Residual
5.2
N,N-Diethyl-p-phenylenediamine (DPD) Indicator Solution
EPA
Titrimetric, DPD-FAS
Chlorine, Total Residual
5.2
N,N-Diethyl-p-phenylenediamine (DPD) Indicator Solution
EP
Reagents
N/A
N/A
Diethylphenylenediamine sulphate solution R
APHA
DPD Colorimetric Method
Chlorine (Residual)
3
N,N-Diethyl-p-phenylenediamine (DPD) Indicator Solution
APHA
DPD Ferrous Titrimetric Method
Chlorine (Residual)
2b
N,N-Diethyl-p-phenylenediamine (DPD) Indicator Solution
APHA
DPD Method
Chlorine Dioxide
2
N,N-Diethyl-p-phenylenediamine (DPD) Indicator Solution