Current through Register Vol. 39, No. 6, September 16, 2024
(a) For the purpose
of this Rule, the following definitions shall apply:
(1) "End sealing compound" means a synthetic
rubber compound that is coated onto can ends and functions as a gasket when the
end is assembled on the can.
(2)
"Exterior base coating" means a coating applied to the exterior of a can to
provide exterior protection to the metal and to provide background for the
lithographic or printing operation.
(3) "Interior base coating" means a coating
applied by roller coater or spray to the interior of a can to provide a
protective lining between the can metal and product.
(4) "Interior body spray" means a coating
sprayed on the interior of the can body to provide a protective film between
the product and the can.
(5)
"Overvarnish" means a coating applied directly over ink to reduce the
coefficient of friction, to provide gloss, and to protect the finish against
abrasion and corrosion.
(6)
"Three-piece can side-seam spray" means a coating sprayed on the exterior and
interior of a welded, cemented, or soldered seam to protect the exposed
metal.
(7) "Two-piece can exterior
end coating" means a coating applied by roller coating or spraying to the
exterior end of a can to provide protection to the metal.
(b) This Rule applies to volatile organic
compound emissions from coating applicators and ovens of sheet, can, or end
coating lines involved in sheet exterior and interior basecoat and overvarnish;
two-piece can interior body spray; two-piece spray or roll coat can exterior;
and three-piece can side-seam spray and end sealing compound
operations.
(c) Unless the
exception in Paragraph (d) of this Rule applies, emissions of volatile organic
compounds from any can coating line subject to this Rule shall not exceed:
(1) 4.5 pounds of volatile organic compounds
per gallon of solids delivered to the coating applicator from sheet exterior
and interior basecoat and overvarnish or two-piece can exterior basecoat and
overvarnish operations;
(2) 9.8
pounds of volatile organic compounds per gallon of solids delivered to the
coating applicator from two and three-piece can interior body spray and
two-piece spray or roll coat can exterior end operations;
(3) 21.8 pounds of volatile organic compounds
per gallon of solids delivered to the coating applicator from a three-piece can
side seam spray operation; or
(4)
7.4 pounds of volatile organic compounds per gallon of solids delivered to the
coating applicator from end sealing compound operations.
(d) Any source that has controlled emissions
pursuant to
15A NCAC
02D .0518(e) prior to July
1, 2000 and that has installed air pollution control equipment in accordance
with an air quality permit pursuant to
15A NCAC
02Q .0300 or
02Q .0500 in order to comply with
this Rule before December 1, 1989 may comply with the limits contained in this
Paragraph instead of those contained in Paragraph (c) of this Rule. Emissions
of volatile organic compounds from any can coating line subject to this
Paragraph shall not exceed:
(1) 2.8 pounds of
volatile organic compounds per gallon of coating, excluding water and exempt
compounds, delivered to the coating applicator from sheet exterior and interior
basecoat and overvarnish or two-piece can exterior basecoat and overvarnish
operations;
(2) 4.2 pounds of
volatile organic compounds per gallon of coating, excluding water and exempt
compounds, delivered to the coating applicator from two and three-piece can
interior body spray and two-piece can spray or roll coat exterior end
operations;
(3) 5.5 pounds of
volatile organic compounds per gallon of coating, excluding water and exempt
compounds, delivered to the coating applicator from a three-piece can side-seam
spray operation; or
(4) 3.7 pounds
of volatile organic compounds per gallon of coating, excluding water and exempt
compounds, delivered to the coating applicator from end sealing compound
operations.
Authority
G.S.
143-215.3(a)(1);
143-215.107(a)(5);
Eff. July 1, 1979;
Amended Eff. July 1, 1996; July 1, 1991;
December 1, 1989; January 1, 1985;
Readopted Eff. November 1,
2020.
