Code of Maine Rules
06 - DEPARTMENT OF ENVIRONMENTAL PROTECTION
096 - DEPARTMENT OF ENVIRONMENTAL PROTECTION - GENERAL
Chapter 132 - GRAPHIC ARTS - ROTOGRAVURE AND FLEXOGRAPHY
Section 096-132-4 - Daily - weighted average limitations

A.The owner or operator of a packaging rotogravure, publication rotogravure, or flexographic printing press shall not apply, during any day, coatings or inks on the subject printing press unless the daily-weighted average, by volume, of VOC content of all coatings and inks, as applied, each day on the subject printing press is equal to or less than the limitation in Section (3)(B) and (3)(C) of this Chapter.

B. An owner or operator may comply with the daily - weighted average limitation by grouping coatings or inks used on a printing press into two categories that meet conditions 1 and 2 of this section. Any use of averaging between the two categories of coatings or inks used on a packaging rotogravure press or on a flexographic press requires compliance with the emission standard in Section (3)(B)(3).

C. Compliance with this section shall be demonstrated through the applicable coating or ink analysis test methods and procedures specified in Appendix A, Procedure B and the recordkeeping and reporting requirements specified in Section (7)(C).

D. The following equation shall be used to determine if the weighted average VOC content of all coatings and inks, as applied, each day on the subject printing press exceeds the limitation specified in Section (3)(B)(1) or (3)(C)(1):

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where:

VOC(i)(A) =The weighted average VOC content in units of percent VOC by volume of all coatings and inks (excluding water and exempt compounds) used each day;

i =Subscript denoting a specific coating or ink, as applied;

n =The number of different coatings and/or inks, as applied, each day on a printing press;

Li =The liquid volume of each coating or ink, as applied, used that day in units of liters (l) or (gallons [gal]);

Vsi =The volume fraction of solids in each coating or ink, as applied; and VVOCi =The volume fraction of VOC in each coating or ink, as applied.

E. The following equation shall be used to determine if the weighted average VOC content of all coatings and inks, as applied, each day on the subject printing press exceeds the limitation specified in Section (3)(B)(2) or (3)(C)(2):

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where:

VOC(i)(B) =The weighted average VOC content in units of percent VOC by volume of the volatile content of all coatings and inks used each day;

i =Subscript denoting a specific coating or ink as applied;

n =The number of different coatings and/or inks, as applied, each day on each printing press;

Li =The liquid volume of each coating or ink, as applied, in units of (l)or (gal);

VVOCi =The volume fraction of VOC in each coating or ink, as applied; and

VVCi =The volume fraction of volatile matter in each coating or ink, as applied.

F. The following equation shall be used to determine if the weighted average VOC content of all coatings and inks, as applied, each day on the subject printing press exceeds the limitation specified in Section (3)(B)(3):

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where:

VOC(i)(C) =The weighted average VOC content in units of mass of VOC per mass of coating solids;

i =Subscript denoting a specific coating or ink, as applied;

n =The number of different coatings and/or inks, as applied, each day on a printing press;

Li = The liquid volume of each coating or ink, as applied, used on the day in units of (l) or (gal);

Di = The density of each coating or ink, as applied, in units of mass of coating or ink per unit volume of coating or ink;

WVOCi = The weight fraction of VOC in each coating or ink, as applied; and

Wsi = The weight fraction of solids in each coating or ink, as applied.