Section 326IAC8-11-3. Emission limits

   (a) On and after January 1, 1996, each owner or operator of a wood furniture manufacturing operation subject to this rule shall limit VOC emissions from finishing operations by doing one (1) of the following:

(1) Using topcoats with a VOC content no greater than eight-tenths (0.8) kilogram of VOC per kilogram of solids (kg VOC/kg solids) or eight-tenths (0.8) pound of VOC per pound of solids (lb VOC/lb solids), as-applied.

(2) Using a finishing system of sealers with a VOC content no greater than one and nine-tenths (1.9) kg VOC/kg solids (one and nine-tenths (1.9) lb VOC/lb solids), as-applied and topcoats with a VOC content no greater than one and eight-tenths (1.8) kg VOC/kg solids (one and eight-tenths (1.8) lb VOC/lb solids), as-applied.

(3) Using sealers and topcoats based on the following criteria, for sources using acid-cured alkyd amino vinyl sealers or acid-cured alkyd amino conversion varnish topcoats:

(A) For wood furniture manufacturing operations using acid-cured alkyd amino vinyl sealers and acid-cured alkyd amino conversion varnish topcoats, the following:

(i) The sealer shall contain no more than two and three-tenths (2.3) kg VOC/kg solids, (two and three-tenths (2.3) lb VOC/lb solids), as-applied.

(ii) The topcoat shall contain no more than two (2.0) kg VOC/kg solids, (two (2.0) lb VOC/lb solids), as-applied.

(B) For wood furniture manufacturing operations using a sealer other than an acid-cured alkyd amino vinyl sealer and acid-cured alkyd amino conversion varnish topcoats, the following:

(i) The sealer shall contain no more than one and nine-tenths (1.9) kg VOC/kg solids (one and nine-tenths (1.9) lb VOC/lb solids), as-applied.

(ii) The topcoat shall contain no more than two (2.0) kg VOC/kg solids, (two (2.0) lb VOC/lb solids), as-applied.

(C) For wood furniture manufacturing operations using an acid-cured alkyd amino vinyl sealer and a topcoat other than an acid-cured alkyd amino conversion varnish topcoat, the following:

(i) The sealer shall contain no more than two and three-tenths (2.3) kg VOC/kg solids (two and three-tenths (2.3) lb VOC/lb solids), as-applied.

(ii) The topcoat shall contain no more than one and eight-tenths (1.8) kg VOC/kg solids (one and eight-tenths (1.8) lb VOC/lb solids), as-applied.

(4) Using finishing materials such that actual emissions are less than or equal to allowable emissions using one (1) of the following averaging equations:

  Equation 1:

0.9 (Σ_i=1→N(0.8)(TC_i)) ≥ Σ_i=1→N ER_TCi (TC_i)

  Equation 2:

0.9 (Σ_i=1→N(1.8)(TC_i) + (1.9)(SE_i) + (9.0)(WC_i) + (1.2)(BC_i) + (0.791) (ST_i)) ≥ Σ_i=1→N ER_TCi(TC_i) + ER_SEi(SE_i) + ER_WCi(WC_i) + ER_BCi(BC_i) + ER_STi(ST_i)

Where:	N	=	number of finishing materials participating in averaging.
	TCi	=	kilograms of solids of topcoat "i" used.
	SEi	=	kilograms of solids of sealer "i" used.
	WCi	=	kilograms of solids of washcoat "i" used.
	BCi	=	kilograms of solids of basecoat "i" used.
	STi	=	liters of stain "i" used.
	ERTCi	=	VOC content of topcoat "i" in kg VOC/kg solids, as-applied.
	ERSEi	=	VOC content of sealer "i" in kg VOC/kg solids, as-applied.
	ERWCi	=	VOC content of washcoat "i" in kg VOC/kg solids, as-applied.
	ERBCi	=	VOC content of basecoat "i" in kg VOC/kg solids, as-applied.
	ERSTi	=	VOC content of stain "i" in kg VOC/liter (kg/l), as-applied.

(5) Using a control system that will achieve an equivalent reduction in emissions as the requirements of subdivision (1), (2), or (3), as calculated using the compliance provisions in section 6(a)(2) of this rule, as appropriate.

(6) Using a combination of the methods presented in this subsection.

  (b) On and after January 1, 1996, each owner or operator of a wood furniture manufacturing operation subject to this rule shall limit VOC emissions from cleaning operations when using a strippable booth coating. A strippable booth coating shall contain no more than eight-tenths (0.8) kg VOC/kg solids (eight-tenths (0.8) lb VOC/lb solids), as-applied. (Air Pollution Control Division; 326 IAC 8-11-3; filed Dec 5, 1995, 8:30 a.m.: 19 IR 1066; errata filed Dec 12, 2002, 3:35 p.m.: 26 IR 1568)