Thanks.  The OEM elected not to use OS-20 because of cost.  IP alcohol costs
about $3/gal while OSB-20 is about $79/gal.  Folks should send CA bill for
the increase in manufacturing cost.
----- Original Message -----
From: "Brian Ellis" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, November 12, 2001 1:50 AM
Subject: Re: [TN] Seeking info on replacement for IP Alcohol which is no
longerallowed for cleaning of electronics in California


> Hi!
>
> The law is an ass! Logically, they should stop the sale and consumption
> of all alcoholic liquor, as well. You could always try cleaning in
> whisky!
>
> Your best bet is to go water-soluble. Certainly, the OS-20 will be
> classed as a VOC. What this law, and other VOC ones, in Europe as well
> as in the USA, forget is that the effect of a VOC on the environment
> depends on many factors, not the least of which are emissions. An open
> bath of hot solvent is more emissive than a closed bath of a cold
> solution of the same solvent. Then, not all solvents are equal in their
> effect as an ozone smog precursor. The latter cannot be produced without
> NOxs, as well, so that emissions in the middle of LA are more likely to
> be serious than in the middle of the Mojave Desert (OK for the guys at
> China Lake!) and most hydrocarbon solvents have a very short atmospheric
> residence time, so that they are not going to roll down the hill into LA
> from there!
>
> As for the ionic contamination tester, the specs state quite clearly IPA
> and nothing else, but the quantity used is so small that you must be
> able to claim an essential use exemption. Anyway, testing is not
> cleaning and you specifically state "for electronic cleaning".
>
> Be comforted, no matter what you go for will be a better cleaner than
> IPA! It may remove the thick of the rosin residues, but it is decidedly
> not a good flux remover. If I were you, water-soluble is the answer.
>
> Brian
>
> > Bogert wrote:
> >
> > 11/11/2001
> >
> > Folks, the law makers in California are at it again.  Per South Coast
> > Air Quality Management (SC AQMD) Rule 1171, the VOC solvent limits are
> > lowered, again, starting in January 2002.  The amount of VOC in lb/gal
> > for electronic cleaning is 0.83 for electronic apparatus as well as
> > for repair cleaning.  I believe IP alcohol is around 6.55 lb/gal.
> > Thus, IP alcohol is no longer allowed for electronic cleaning in
> > California as of 1/1/2002.
> >
> > I am checking with California to see if this also means that use of IP
> > in Ionic cleanliness testers is also dis-allowed.  Seems to me that we
> > can consider these testers to be sccientific instruments which are
> > exempt from the Rule 1171 solvent requirements.  This is what I am
> > proposing to the SC AQMD.
> >
> > Does anyone out there have any experience with use of Dow Corning OS-2
> > or OS-20 as a solvent to remove RMA flux in military applications?
> > The company claims the solvents are replacements for IP alcohol.
> > These solvents are Octamethyltrisiloxane based.
>
> --------------------------------------------------------------------------
-------
> Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF Technet
> To temporarily halt delivery of Technet send the following message: SET
Technet NOMAIL
> Search previous postings at: www.ipc.org > On-Line Resources & Databases >
E-mail Archives
> Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
additional
> information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700
ext.5315
> --------------------------------------------------------------------------
-------
>

---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------