Thanks for info.  The OEM decided not to use the OS-20 solvent because of
cost considerations.  IP alcohol is about 3/gal vs OS-20 which is about
$79/gal.
----- Original Message -----
From: "<Rudy Sedlak>" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, November 11, 2001 11:38 PM
Subject: Re: [TN] Seeking info on replacement for IP Alcohol which is no
longer allowe...


> First....Suspect that an octyl Siloxane would be classified by SCAQMD (for
> non-Californians, this is Southern California Air Quality Management
> District) as a VOC..
>
> They do not understand that there is virtually any such thing as a
> NON-Volatile organic.
>
> However, they do understand about consumption and use, and if you can
> demonstrate that your IPA in your ionic tester does not consume
significant
> levels of IPA, they will probably let you off the hook.
>
> If you need help, I can assist you in "proving" this to the SCAQMD, I have
> done this for some of our products.
>
> I suspect that a lot of what you life about IPA for cleaning is that the
> residues evaporate, leaving nothing significant behind, and if this is a
key
> property, you may be in trouble, as you will definitely need a volatile
> organic to give you this property.
>
> Good luck.
>
> Rudy Sedlak
> RD Chemical Company (650-962-8004)
>
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