Thank you DrDu, this is a great idea, indeed.
Can you recommend some indicator? Do you have suggestions?
EDIT: we need an indicator for prolonged use (years), if it exists
We are currently trying to measure pH levels on the (wet) surface of metals as part of a study about corrosion.
The surface may have a non-conductive protective layer.
- is it feasible to measure pH on a planar surface (dry or wet)? Which kind of sensor probe can be used for this task?
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