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June 2004

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Subject:
Re: Nitrogen cleanliness
From:
Daan Terstegge <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 10 Jun 2004 10:27:24 +0200
Content-Type:
text/plain
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text/plain (57 lines) 
Hi David,

Is this SO2 in the nitrogen something to be worried about?  If so then
I'd like to get a copy this report.

Daan Terstegge
Thales Communications
Unclassified mail
Personal Website: http://www.smtinfo.net


>>> [log in to unmask] 06/10/04 07:42am >>>
For those of you using liquid nitrogen as a source for inert gas
during
manufacturing
I have a copy of an interesting report from Lucent Technology that
says
So2 levels ranging from 30 ppb to 80 ppb are not uncommon
in this "inert" gas. These levels are due to the methods generally
used
to create liquid Nitrogen.

If anyone would like a copy I will forward them a copy in MicroSoft
Word
format.

David A. Douthit
Manager
LoCan LLC

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