There are two different series of IPC specifications concerning boards:
the 2221 and 2222 concern the design of the boards
the 6011 and 6012 standards concern how the board is built and the
properties obtained in fabrication.
Also there is a covering standard for rigid board materials - 4101.
You may want to go to
_http://www.ipc.org/4.0_Knowledge/4.1_Standards/revstat1.htm_ (http://www.ipc.org/4.0_Knowledge/4.1_Standards/revstat1.htm)
to see if you have the latest revision of a document in hand.
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------