How to test the protection of Parylene coated components from sulfur ?

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Andrew Slanker

First, I'd ask some clarifying questions about the environment, namely what kind of sulfur compounds they expect to contact their PCB.

Second, ASTM G85 Annex 4 contains a SO2 modification to ASTM B117, which may be used to provide comparative results between coating systems.

Nelson Yang

Thank you very much Andrew.