§211.1670. Daily-Weighted Average VOM Content

"Daily-weighted average VOM content" means the average VOM content of two or more coatings as applied on a coating line during any day, taking into account the fraction of total coating volume that each coating represents, as calculated with the following equation:

 

		[	n		]
VOMw	=		Σ	Vi   Ci		/ VT
			i=1

 

where:

 

VOMw	=	The average VOM content of two or more coatings as applied each day on a coating line in units of kg VOM/l (lbs VOM/gal) of coating (minus water and any compounds which are specifically exempted from the definition of VOM),
n	=	The number of different coatings as applied each day on a coating line,
Vi	=	The volume of each coating (minus water and any compounds which are specifically exempted from the definition of VOM) as applied each day on a coating line in units of 1 (gal).
Ci	=	The VOM content of each coating as applied each day on a coating line in units of kg VOM/1 (lbs VOM/gal) of coating (minus water and any compounds which are specifically exempted from the definition of VOM), and
VT	=	The total volume of all coatings (minus water and any compounds which are specifically exempted from the definition of VOM ) as applied each day on a coating line in units of 1 (gal).

 

(Source:  Added at 17 Ill. Reg. 16504, effective September 27, 1993)