Hello TechNet:

We are searching for a method of accelerated aging of PCBs with surface finish in white tin (chemical  tin).
This method should be recognized , in order to simulate the storage of 6 or 12 month under normal conditions.
(85/85/1d or 2d  test ??)
After such an accelerated test, the solderability will be tested by the wetting balance method.

Thank you for your answer

With best regards

Peter Hefti