TECHNET Archives

April 2004

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
"Kane, Joseph E" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 28 Apr 2004 10:45:15 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (79 lines)
Thanks to Jim and all who responded.

Any ambiguity in J-STD-001 will be cleaned up in Rev. D, which
should be issued by the end of this year.

I've seen only a few posts back from people actually using WSF
for Class 3 or DOD, though consultants and others on the forum
with wide industry contacts seem to believe that there are a lot
of us around.  If anyone is reluctant to publicize such a thing,
I can see how it might be for proprietary/competitive reasons.

-Joe Kane


-----Original Message-----
From: James H. Moffitt [mailto:[log in to unmask]]
Sent: Wednesday, April 28, 2004 10:09 AM
To: [log in to unmask]
Subject: Re: [TN] Water Soluble Flux for Class 3


Joe/Alcon:
- IMHO it was not, and is not, the intent of IPC standards to limit the use
of any technology that will produce a conforming product (see paragraph 1.1
Purpose of 001).
- In a former life I had intimate contact with the development of Mil-Stds.
and with quality assurance aspects of DOD procurements. Re the MIL-STDs;
WS-6536, DOD-STD-2000 and Mil-Std-2000 all limited the use of alternative
flux to
tinning of solid wire, sealed components, terminals and epoxy bodied parts.
By
the time we wrote Mil-Std-2000A and Mil-Std-2000B (unfortunately never
issued)
the light of day had begun to break over DOD. Paragraph 4.6.3 (Use of
nonrosin
fluxes) of 2000A in discussing the use of non-rosin flux states in
subparagraph b. " Material is used to solder printed wiring assemblies and
data
demonstrating compliance with the testing requirements of Appendix A is
available for
review." The intent of DOD in using that phrase in both 2000A and 2000B was
to
allow the use of nonrosin flux by responsible manufacturers.
- Regarding HF-1189 and similar formulations. In the aforementioned former
life I recommended the use of 1189, and approved the use of similar
formulations
on hardware procured by DOD. After testing 1189 to evaluate the corrosive
characteristics of any residue and found no problems I recommended it for
use in
amplifiers internal to oxygen masks and flight helmets for USN aircrews.
- Helloooo: the message is, the responsible use of nonrosin flux is accepted
practice not only within DOD but within Class 3 products for the private
sector.
Regards, Jim Moffitt

---------------------------------------------------
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
847-509-9700 ext.5315
-----------------------------------------------------

---------------------------------------------------
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 847-509-9700 ext.5315
-----------------------------------------------------

ATOM RSS1 RSS2