How often should the fill solution in the Ammonia membrane module be replaced?

Document ID

Document ID TE2793

Version

Version 3.0

Status

Status Published

Published Date

Published Date 07/17/2018
Question
How often should the fill solution in the Ammonia membrane module be replaced?
Summary
Filling solution replacement schedule
Answer
When the membrane module is removed to store the glass bulb in its storage soaker bottle for long term storage, the filling solution should be replaced. If the electrode is left out in the air (not in storage soaker bottle) for more than one hour, it is also recommended to replenish the fill solution. Additionally, if measurement drift, poor response, or failed calibration occurs with a relatively new membrane module, the filling solution may need to be replaced.

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