Doug,
It remind me some spec I reviewed years ago. Someone cut and paste a submarine spec to aircraft unit. Two weeks headache for few of us. Good to know it is not just "step child" abuse for our non-US...
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----- Original Message -----
From: TechNet <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Sent: Mon Dec 14 09:18:23 2009
Subject: Re: [TN] RoHS burden
And I would say that the "cut and paste" mentality is not limited to
legislation. I periodically get pulled into reviews of new contract
requirements for our customers, especially military ones, containing
references to military standards and specifications that have been
obsolete for years, even decades. And why is that? Because this contract
is the same as the one we had 5 years ago, and so it was cut and pasted
from the old contract. Same thing that happened five years ago, and the
five years before that...... The worst one I have seen so far referred
to a military specificiation that had been cancelled without replacement
in 1972 (I was in 8th grade then), in a contract for 2008.
And now that we are wrestling with the seven headed hydra called REACH,
and we have to go through our BOMs before selling our items into the EU,
we are starting to find all kinds of outdated reference as we track back
through drawings. Job security I suppose, but as someone said, very
onerous.
Doug Pauls
Eric CHRISTISON <[log in to unmask]>
Sent by: TechNet <[log in to unmask]>
12/14/2009 04:13 AM
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Re: [TN] RoHS burden
I agree with you Mike.
Most of this stuff is just cut and paste and we get our supplers to do
the donkey work and fill out their part of the form for us. I used to
think that no one read them either and was seriously considering
slipping a gramme of plutonium into a materials declaration just to see
if anyone said anything when our customer did actually comment on a few
details.
That said it is mind crushingly boring. In the past I've regarded it a
bit like toothache, if you can ignore it for long enough it seems to go
away. But that's not a very professional approach.
Regards,
Mike Fenner wrote:
> Hi Inge
>
> We occasionally receive long lists of chemicals and substances which we
have
> to certify are not present in our products or our manufacturing. On
first
> sight they look like an impossible task.
> On investigation these lists are invariably repetitions of all the
> substances that have been subject of legislation banning them. They are
> usually grouped according to the legislation topics and in chronological
> order of the legislation. Amongst these would be ROHS.
> These look very difficult on first sight, but [for us anyway] are not
that
> onerous as it is easy to see that about 98% of the stuff does not apply.
> Likely REACH will affect this as it is getting into everything in the
> compliance/EHS zone.
>
>
> Specifically on ROHS: Certain aerospace and high rel defence companies
do
> have continuing concerns about Pb-free, and require strict
> analysis/certification. Their concerns are the opposite of most other
> people: make sure that no damaging Pb-free [finishes] creep in to their
> facility. So as we, in common with most larger solder companies,
routinely
> give a solder analysis and RoHS statement with every shipment this
actually
> is not really a problem.
>
> I am also aware that occasionally companies do have difficult
requirements
> on component values. These seem be those wanting to get very tight
> accuracies on resistor values, but for some reason can't use hybrid
thick
> film, usually size/complexity expense, sometimes expense. (For those few
who
> possibly don't know: hybrid thick film resistors can be
> accurately/individually laser trimmed).
>
> Maybe Boeing falls into this category.
>
> Hope this perspective helps.
>
>
> Regards
>
>
> Mike
>
> Mike Fenner, Technical Manager
> Indium Corporation
> Europe
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge
> Sent: Saturday, December 12, 2009 9:16 AM
> To: [log in to unmask]
> Subject: [TN] RoHS burden
>
> Hi all,
> have not had time to take part of the discussions for a while. Am
consulting
>
> at another company. They needed help with doing analysis of components.
> Boeing is incorporated. I got a list of forbidden materials from them.
Not
> many can cope with Boeing's requirements. Only a few in whole Europe!
Now,
> I've a question. Has anyone of you been involved in such tough demands,
> namely this one...not only they call for checking the finish of every
> component type, but all values (!!) within each component family. That
> means, that one sample from EVERY resistor value must be analyzed and
> reported to Boeing. An incredible job list. Does this make sense?
> /Inge
>
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--
Eric Christison Msc
Mechanical Engineer
Consumer & Micro group
Imaging Division
STMicroelectronics (R&D) Ltd
33 Pinkhill
Edinburgh EH12 7BF
United Kingdom
Tel: +44 (0)131 336 6165
Fax: + 44 (0)131 336 6001
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