palintest Lumiso Chlorine User Manual page 35

Free & Total Chlorine (DPD Liquid Method) - Cl
Colour Change:
Range:
1
Rinse tube with sample
leaving a few drops.
3
Add 3 drops of DPD B liquid
(DPD No1 Buffer)
Colourless to Pink
0 – 5 mg/L
Add 3 drops of DPD A liquid
(DPD No1 Indicator)
Swirl thoroughly to mix
(0-5)
2
35
2
4