Can one use a Potassium Permanganate standard to verify the DPD method?

Document ID

Document ID TE1846

Published Date

Published Date 27/05/2017
Question
Can one use a Potassium Permanganate standard to verify the DPD method?
Summary
Potassium permanganate (KMnO4) and DPD verification
Answer
Hach does not advise using Potassium Permanganate to verify the DPD chlorine method. Hach advises to use a primary chlorine standard.