QQ-S-571 was authored by US Gov. and administered by Hugh Russell out of
Defense Supply Center.  Note that the QQ-S-571 and its associated QPL
were cancelled (without supercession) ~6/15/95.  For internal
procurement, DoD users were directed to IPCs ANSI/J-STD-004 (liquid
flux), 005 (solder paste) and 006 (solder alloys/wire/preforms).


===============================
Jim Maguire
Senior Principal Engineer
Boeing Defense & Space Group
PO Box 3999  M/S 3W-97
Seattle, WA  98124-2499
Phone (206)657-9063     Fax 657-8903
Email:  [log in to unmask]
================================

> ----------
> From:         Robert Schetty[SMTP:[log in to unmask]]
> Reply To:     TechNet Mail Forum.;Robert Schetty
> Sent:         Tuesday, October 21, 1997 10:46 AM
> To:   [log in to unmask]
> Subject:      Re: [TECHNET] Assembly
>
> Hi Charles,
>
>         Thanks for the information.  Who is the sponsoring
> organization of the spec.
> you mentioned (QQ-S-571E)?  Where can I get a copy?
>
>         Rob Schetty
>         LeaRonal Inc.
>
> ----------
> From:  TechNet on behalf of Charles Barker
> Sent:  Monday, October 20, 1997 12:31 PM
> To:  [log in to unmask]
> Subject:  Re: [TECHNET] Assembly
>
> Charles Barker@IO-US
> 10/20/97 11:31 AM
>
> The QQ-S-571E spec shows a .0050% max acceptable level of Zinc in the
> alloy, but I couldn't find anything referencing Cobalt in this spec.
>
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