Dear Mr.Nimmo,

I think it is sure that the standard test of Whisker is 50C.
It is because that Whisker fromation is depend on
Sn recrystallization.
However, the organic impurities  $B!" (Bthe intermetallics or oxidation
 increase the probablity of Whisker fromation.
In this case,it isn't enough only in 50 C test.
Therefore, recently, the 125 C heat cycle test, 95C 95% humidity
 test are well done.

thanks

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