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Permissible exposure limits
Posted by Dave in Houston [Email] (more from Dave in Houston) on Mon, 12 Jul 2004 05:09:07
In Reply to: Re: Dirty Vinyl, red87ragtop, Thu, 8 Jul 2004 10:34:34
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In the interest of continued good health:
OSHA sets permissible exposure limits for many chemicals. The PEL for acetone is 1000 parts per million, while the PEL for MEK is just 200 ppm. These PEL values reflect the danger of exposure to the various chemicals. Even though MEK is somewhat less volatile, the chances of getting an excessive dosage are much higher.
Also, MEK is absorbed through the skin very rapidly. It's a neurotoxin particularly dangerous for pregnant women since it interferes with the development of the nervous system in the fetus.
For more information, you can google "MEK carcinogen" and "Acetone carcinogen".
I would suggest a more benign solvent like mineral spirits if it will do the job. If you use a ketone, please use heavy chemical gloves and a respirator designed to remove organic vapors. Don't trust a thin latex glove and a dust mask to protect you for this job.
Work safely, and best regards,
Dave
posted by 12.109....
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