Printech Archive, February, 2000
Re: VOC content/photochemical reactivity


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From: Brian Grochowski (bgrocho@gridusa.net)
Date: Wed Feb 16 2000 - 00:05:09 CST


VOC content determination is probably one of the simplest but most
confusing
issues. It seems that everybody and their brother has their own
definition of what
is a VOC. Certainly Method 24 is the standard in determining volatile
content, but
isn't VOC content based on the volatile content and it's classification
under 40
CFR 51.100? 40 CFR 51.100 specifically defines a VOC as a volatile
organic
compound (as defined by Method 24) which is photochemically reactive.
Am I wrong
to state that a product like heptane which is volatile according to
Method 24 is
not a VOC since it is not photochemically reactive? Don't chemicals
like acetone
and methyl acetate become delisted as VOC's because of their negligible
photochemical reactivity? Methyl acetate and acetone are clearly still
volatile
compounds according to Method 24, but they are not VOC's due to
negligible
photochemical reactivity?

Is my logic incorrect?

Brian Grochowski


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