What could be causing low results on the ferrous iron method?

Document ID

Document ID TE328

Version

Version 2.0

Status

Status Published

Published Date

Published Date 27/05/2017
Question
What could be causing low results on the ferrous iron method?
Summary
Low results on the ferrous iron method
Answer
Ferrous iron is not stable and will rapidly convert to ferric iron when exposed to the atmosphere. Try adding 0.1g Rover Rust Remover to 25 mL of sample to attempt to stop the conversion and make the sample more stable.