In method 8326, the interference section for pH lists 3 different pH ranges. Which pH range should the test be run at?

Document ID

Document ID TE1639

Version

Version 2.0

Status

Status Published

Published Date

Published Date 27/05/2017
Question
In method 8326, the interference section for pH lists 3 different pH ranges. Which pH range should the test be run at?
Summary
The proper pH range for Aluminum testing
Answer
According to the method, pH ranges 2.9-4.9 or 7.5-11.5 should work. However, the pH range of 2.9-4.9 would be preferable as our instruments are calibrated at pH 2.5-3