[ATMoB-discuss] Eyepiece repair

[mmotta at massmed.org]

Just FYI:
   Acetone and Ketones are found in
blood only when you are having a
diabetic acidosis state. In fact the
other name for that is "ketosis". Never
found in blood when metabolism working
well, only when something is not working
well (eg, uncontrolled Diabetes). If you
have experience with this, then... You
better get your diabetes in better
control!

Mario

On Mon, 29 Jan 2007 10:38:53 -0500
(EST), valleli at rcn.com wrote:

> 
> Glenn,
> I should have CC:'d the discuss group
> because I answered that directly to
> Ross. At Axsys we have been able to
> eliminated most solvents for lens
> cleaning except Acetone and IsoPropyl
> Alcohol. 
> Both are strong water absorbers but
will
> weaken with exposure to the atmosphere.
> We still have to use Toluene or the
> Opti-Clear Citrus equivalent to
dissolve
> polishing pitch efficiently. For a
> little bit of pitch on the hands, DL
> waterless hand cleaner works well.
> Wearing rubber or nitrile gloves could
> minimize skin exposure.
> My history of experience was with
dozens
> of solvents, all bad news for one's
> health. The most effective was
> Trichloroethylene - just figures it
> would burn up the ozone!
> 
> Acetone is in the family of Ketones
that
> are normally in the blood stream as a
> by-product of the consumption of body
> fat. That is therefore my first
choice. 
> 
> Beware that most alcohols available
over
> the counter contain considerable water.
> IsoPropyl Alcohol has an ability to
> dissolve both grease and oil products
> and also many airborne contaminents
such
> as saliva, aerosols, spit marks, and
> water stains. 
> However, I find it harder to get a
> residue-free surface compared to
> acetone. 
> 
> Mirrors that have been exposed outside
> to a variety of airborne contaminants
> usually require preliminary cleaning by
> immersion in purified liquid detergent(
> Liquid Ivory - NO PERFUMES,NO DYES)
then
> alternating water/alcohol/acetone.
> 
> Paul
>   
>
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