Spot Test for porosity on electroless nickel plating on copper?

Is there a spot test for porosity in electroless nickel deposits over copper? (similar to the ferroxyl test for steel basis metals)

Don Baudrand
Consultant - Poulsbo, Washington
(Don is co-author of "Plating on Plastics" [on Amazon or AbeBooks affil links]
and "Plating ABS Plastics" [on Amazon or eBay or AbeBooks affil links])
2006

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