You are absolutely correct in describing the EPA position on the delisting of
acetone and other chemicals. However, the response completely misses the
point that Marci raised. With its high vapor pressure and low ignition point
the use of acetone in an industrial environment becomes quite hazardous.
Shouldn't the EPA be concerned about such hazards as they contemplate
removing such materials from the basic control system provided by the VOC
regulations? Apparently there is no one in the EPA who will admit to having
such a responsibility. I've asked around with no success.