Hi Phil

For the record, MIL-I-46058C QUALIFIED materials are being maintained - we
have just qualified some new ones within the past month:
http://www.dscc.dla.mil/programs/qmlqpl/QPLdetail.asp?QPL=46058

This MIL standard has not been cancelled, it has been superseded by
IPC-CC-830RevB. (At least that is what I understand to be the case.) This
means that the DSCC will no longer develop the MIL-I-46058C it shall simply
remain extant in its current form.

What we are not clear about is for how long DSCC will continue to qualify
materials.

You are correct, IPC-CC-830 does not require independent testing, but then
this is simply an "industry norm" it is not a formally recognised standard.

So, you can indeed continue to call up MIL-I-46058C QUALIFIED coatings. Just
be aware that there are some unscrupulous folks out there who claim to "meet
the requirements" or "are approved to" which are simply weasel-words when
the product has not been INDEPENDENTLY tested and QUALIFIED - at great
expense!

Be aware that other moves are afoot to require UL 96V0 qualified materials
on new military applications, so include "UL Approved" on your drawings.

One more note, as we are supposedly in a "Global" market, you might wish to
reference IEC 61086. This is the International Electro-Technical Commission,
International Standard for Conformal Coatings. (www.iec.ch)

I hope this helps.

--
Regards Graham Naisbitt

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On 7/7/05 00:57, "Crepeau, Phil (Space Technology)" <[log in to unmask]>
wrote:

> hi,
>
> the good old days weren't all that bad.  when i needed to have a
> specification callout for a conformal coating on an engineering, i just
> used mil-i-46058, type ur (for example), and the drawing checkers were
> quite happy.  since mil-i-46058 has been cancelled with no replacement,
> what to do?  i couldn't find an ipc equivalent to mil-i-46058 (that is
> one that has a 'qpl' associated with it.  what do i put on my drawing
> notes and parts list?
>
> do conformal coating vendors qualify to ipc-cc-830b?
>
> thanks,
>
> phil
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Gerry Savard
> Sent: Monday, June 27, 2005 6:30 PM
> To: [log in to unmask]
> Subject: Re: [TN] No-clean residue requirements
>
> IPC-A-610D, section 10.4.1, states as acceptable, Class 1,2,3 "No
> discernible residue from cleanable fluxes is allowed" and "Flux residues
> from no-clean processes may be allowed."  The 'may be allowed' part I
> believe covers the bases for those products that have to be super clean
> depending on its end-usage.  In general, no-clean will leave some
> residue which is acceptable since it's activity is very low.
>
> Gerry Savard
>
>
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Jordan, Dave
> Sent: Monday, June 27, 2005 8:46 PM
> To: [log in to unmask]
> Subject: [TN] No-clean residue requirements
>
> I've got a customer claiming that the slight residue left on a board by
> no-clean flux is a fault under either IPC-A-610 or J-STD-001. Perhaps
> I'm missing it, but there doesn't seem to be any clear statement about
> no-clean residue vs water wash in the standards. Any help out there?
> Thanks in advance.
>
> Dave
> Production Operations
> Nova Engineering
>
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