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Date: | Thu, 26 Jul 2007 19:21:26 -0400 |
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July 26, 2007
I have a question to pose for Tech Net folks based on my limited experience
in this area. If I have a cleaning machine that includes a built in
continuous test for rinse water or wash water resistivity, do I need to then
still do an independent ionic contamination test using the standard DI
Water/Alcohol Ionic Contamination test? If so why? What is the technical
relationship between the two tests? Can one equate the cleaning machine
Resistivity Test results to the J-STD-001 cleanliness limits or the results
of the Ionic Contamination test? If so, how? Have folks experience shown
that one can pass the cleaning machine Resistivity Test and still fail Ionic
Contamination Test? Why?
Doug, Pauls, as the worlds (wow) expert in this area, what do you say (It
depends)???.
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