Thanks for all the replies.  I've guess I've gotten a partial answer.  I was
unaware that 4101A and 4103 had been published.  My updated copies haven't
made it to me yet.

The unanswered portion of my question is what happens as new slash sheets
are created between formal revisions of these documents?  Surely the whole
100+ page documents revised just to incorporate a few new material slash
sheets, are they?  Is there a subscription that I need to have to
automatically receive new slash sheets as they are added.

> ----------
> From:         Ted Edwards[SMTP:[log in to unmask]]
> Sent:         Wednesday, February 20, 2002 2:10 PM
> To:   TechNet E-Mail Forum.; Mcmaster, Michael
> Subject:      Re:      [TN] 4101 / Sheets
>
> A good start is to get a copy of the new IPC-4101A released December 2001.
> The IPC Technical Review also tracks what is happening on specification
> reviews and I am sure the IPC.org web site also probably has it also.  New
> materials are usually added at the working sessions on specification
> revision at IPC EXPO and the annual meeting later in the year at the
> request
> of the material supplier or a user.  The 3-11 subcommittee(4101A) is
> chaired
> by Doug Sober of Polyclad Laminates.
>
> ----- Original Message -----
> From: "Mcmaster, Michael" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, February 20, 2002 1:52 PM
> Subject: [TN] 4101 / Sheets
>
>
> > The current revision of IPC4101 is now 4+ years old.  There have been a
> lot
> > of new materials (Rogers 4000, APPE) introduced during that time that
> don't
> > seem to fit any of the existing "/" sheet definitions.  Does anybody
> know
> > how new designations are created and how the spec gets updated?
> >
> >
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> >
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>

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