Printech Archive, May, 1999: Re: Use of acetone in reformulated products

Re: Use of acetone in reformulated products

Jerald Trautman (TRAUTMAJ@state.mi.us)
Tue, 01 Jun 1999 13:54:00 -0400

The use of acetone is not a freebie.

When determining VOC content of a coating, remember the content is to be calculated minus water and exempt compounds. Thus if you have a 4.0 lb/gal VOC content and need a 3.0 lb/gal VOC content for compliance, replacing 1 lb of VOCs with 1 lb acetone will not do it. By replacing 1 lb of VOC, the resulting coating has a VOC content of 3.45 lb/gal (when using 7.36 as a default solvent density) not a 3.0 lb/gal VOC content.

Additionally, acetone is still classed as a toxic and the predicted ambient impact must be below the ITSL screen level when a Toxic BACT determination is made in those locals with toxic regulations in a new source permit review. Predicted ambient impacts in excess of the screen level in a T-BACT analysis can be used to determine if add-on control is cost effective. Also, the amount acetone emissions may be added to the amount VOC emissions from a line in determining if add-on control is cost effective in a regular BACT determination in a new source permit review.

 

PNEAC

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