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March 1999

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Subject:
From:
"Norton, Bill" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 22 Mar 1999 10:29:41 -0600
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text/plain
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text/plain (97 lines)
Dave & Mark

Try MIL-P-55110E Table IX Equivalence factors.


> -----Original Message-----
> From: Mark Austin [SMTP:[log in to unmask]]
> Sent: Monday, March 22, 1999 10:05 AM
> To:   [log in to unmask]
> Subject:      Re: [TN] Circuit Card  Cleanliness
>
> Dave
>
> We are using an Ionograph Contaminometer (ZI 100) and the MIL spec limit
> for
> this type of tester is 37ug per square inch when used in the un-timed
> setting.
>
> I cant recall the number of the MIL spec but someone else out-there may
> know.
>
>
>
> ===== Original Message from [log in to unmask] (TechNet E-Mail Forum.) at
> 22/03/99 13:01
> >IPC,
> >
> >
> >I am using IPC - CH - 65 Guide for cleaning PCB's.
> >
> >I am using an Ionograph Contaminometer to check contamination levels
> >on populated boards.
> >Is there a standard max level for the surface area of a board, such
> >as 1.5ug / SQ CM.
> >
> >The Ionograph does not quote a standard max level.
> >I will be greateful for any help you can give.
> >
> >Best Regards,
> >
> >Dave,   Quality  Control  Technician.
> >
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>
> Mark Austin (Process Engineer)
> ACW Technology Limited
> Hylton Road
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> GU32 3XX
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>
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