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Subject:	Re: IPC 2222 classes
From:	Gary Ferrari <[log in to unmask]>
Reply To:	[log in to unmask]
Date:	Thu, 30 Oct 2008 11:43:43 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (43 lines)

Louis,

The IPC-2222 is supposed to be used in conjunction with IPC-2221, 
Generic Standard on Printed Board Design. IPC-2221 contains the class 
definitions you seek.

Gary Ferrari
FTG Circuits
Director, Technical Support
860-350-9300

Louis Hart wrote:
> TechNetters, looking at IPC-2222, I see references to Class A, Class B, and Class C. I can't find a definition of the 3 classes in the document. Would someone comment on how these classes are assigned or determined? The question arose in the context of looking at a drawing with no dimensional tolerances. I'm asking for tolerances from the customer, but want to do my own homework on the issue. Thanks. Louis
> 
> Louis Hart
> Compunetics
> Monroeville, PA
> USA
> [log in to unmask]<mailto:[log in to unmask]>
> 412-858-1272
> 
> 
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