Re: Cleaning RF bits (attenuators, connectors, etc.)
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Dr. David Kirkby from Kirkby Microwave Ltd
On Sat, 6 Oct 2018, 23:30 Richard Knoppow, < dickburk@...> wrote: ? ? ?
? ? The problem is that when the alcohol evaporates the water is
left behind. For many purposes it makes no difference but there
are some applications where the driest alcohol possible is
necessary. One is cleaning the emulsion side of photographic
film. Currently, 99+% IPA is Kodak's recommended film cleaner for
the emulsion side only because it can attack some types of
supports.?
I forget the purity, but we used to buy "analytical grade" ethanol for cleaning laser lenses. That was I believe the purest form.?
I have only bought "eBay grade" IPA. Sold as 99.9%, but common sense tells you it is? not.
Dave.?
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