And Graham, where would one find said Epistle?

*Douglas Pauls *| Principal Materials and Process Engr | Advanced
Operations Engineering

*COLLINS AEROSPACE*

400 Collins Road NE, MS 108-101, Cedar Rapids, IA  52498  USA

*Tel:* +1 319 295 2109 | *Mobile: *+1 319 431 3773

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On Thu, Dec 19, 2019 at 3:36 PM Graham Naisbitt <
[log in to unmask]> wrote:

> Hi Guy
>
> As your new VC of the 5-30 committee and new Chair of 5-32b SIR & ECM, I
> have taken the liberty of publishing a book on this subject; as much
> because I could foresee a lot of questions. There being only a few of us in
> a position to answer everyone in the shortest time-frame, I figured that
> this would be the fastest and most effective communication tool.
>
> As some of you might know, a publishing group have been producing many
> “industry handbooks” covering a variety of topical subjects. This includes
> the latest book: Search: "The Printed Circuit Assemblers Guide to Process
> Validation”.
>
> I respectfully recommend that anyone interested in this significant topic,
> might benefit from reading this peer reviewed epistle. Its a FREE download.
>
> My team and I spent over 5 years collaborating with a global,
> multi-national, safety critical and high reliability group, to provide
> them, and everyone else, with the necessary know-how as “what to do next”.
>
> Unlike others, I have more than 25 years assisting, in finite detail, the
> complete scope of this topic. We have satisfied users all around the World.
> Doug Pauls, et al, are far from being alone.
>
> I sincerely hope this will direct you to answering your many questions.
>
> I am available on or off Technet, if you need more.
>
> Happy Christmas everyone
>
> Graham Naisbitt
>
> > On 19 Dec 2019, at 20:17, Guy Ramsey <[log in to unmask]> wrote:
> >
> > We have been exploring the J-STD-001G amendment.
> > We think we have a "qualified" process because:
> > 1. We have monitored our process for several years and established an
> > action threshold at a level that is much lower than the old IPC limit.
> > Because with know the "normal" ROSE test result from or Ionograph.
> > 2. We have never seen evidence of corrosion on assemblies returned from
> the
> > field. And have no reports of corrosion from customers.
> >
> > But, we have not done any SIR testing in years. The mix of parts and part
> > densities have changed dramatically. We have no reason to trust the old
> SIR
> > test results.
> > We would like to gather objective evidence that our cleaning process is
> > compliant.
> >
> > Any experience out there with the Magnalytix system?
> > Any advice about test coupon selection?
> > Anyone?
>