Sounds similar to Foresites C3 tester method, but they incorporate a
quick SIR test based on the old military spec "Y pattern" with the
option for IC of the test solution also. 

Rich K / KEJ

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of [log in to unmask]
Sent: Tuesday, April 15, 2008 7:27 PM
To: [log in to unmask]
Subject: Re: [TN] SV: [TN] Ionic Contamination Question (overall vs spot
reading)

W. G. Wargotz (Bell Labs) reported a method for obtaining spot readings
on  a 
PWA. He glued a small Pyrex tube onto a PWA surface in a point where
problems 
 were noted using a RTV type adhesive. The resulting conductivity cell
was 
filled  with the 75/25 test solution, a probe inserted and the reading
was 
generated. I  think the paper was published in the Proceedings from one
of the IPC 
world  conferences. 
Perhaps someone on staff or Werner can check their reference libraries.


Bill  Kenyon
Global Centre Consulting
3336 Birmingham Drive
Fort Collins, CO  80526
Tel: 970.207.9586   Cell:  970.980.6373




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