The reduction mixture recommended is upto 5% hydrogen and beyond that
safety is of concern.
We never used beyond 5% hydrogen and thus made no special safety
arrengements except standard gas handling requirements, explosion proof
cylinder chamber, fire extinguisher nearby.

ashok


> ----------
> From:         [log in to unmask][SMTP:[log in to unmask]]
> Sent:         August 17, 1998 1:39 PM
> To:   [log in to unmask]
> Subject:      [TN] Hydrogen/Nitrogen saftey issues
>
> From: Dennis J Fall@TFT on 08/17/98 01:39 PM
>
>
> To:   [log in to unmask]
> cc:
> Subject:  Hydrogen/Nitrogen saftey issues
>
> I am looking for some information regarding the safety of reflow ovens
> using a 15% Hydrogen 85% Nitrogen atmosphere.  If anyone has had
> experience
> using this concentration or something close to it, please let me know.
> Maybe we can discuss any safety issues that may pertain to the
> process.
>
> Thank You,
>
> Dennis Fall                        P: 507-625-8445 x17
>
> Process Engineer                   F: 507-625-3523
>
> Thin Film Technology Corporation         mailto:[log in to unmask]
>
> 1980 Commerce Drive                http://www.thin-film.com
>
> North Mankato, MN 56003-1702
>
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