I have a question about some SIR results that I got. I made a few
     consecutive SIR tests on a coupon and found that the ohm reading kept
     on increasing the longer I left the coupon inside the humidity chamber
     (35C, 85%RH). My understanding is that the reading should normally
     decrease with the elapsed time, indicating the lowering of surface
     resistance, right? I ran the coupon for 1 week, at first the ohm
     reading looked OK (~2-5e11 ohm), but at the end of the week the
     reading esceeded 1e12 ohm. I am confused.

     T.G.Yee
     Hadco Kuching

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