Section Env-A 804.06 - Calculation of Daily-Weighted Average for a Coating Line Using Multiple CoatingsThe owner or operator of a coating source subject to a pounds VOC/gallon coating standard as specified in Env-A 1200, using multiple coatings on a single line, may choose to demonstrate compliance with such standard by calculating a daily-weighted average as follows:
(a) "Pounds per gallon of coating, daily-weighted (PW)" means the daily-weighted average VOC content of the coatings, as applied, used on a coating line or operation in units of lb VOC per gal of coating or kg VOC per l of coating, minus water and exempt VOC compounds;(b) "n" means the number of different coatings or diluents, as applied, used each day on a coating line or operation;(c) "i" means the subscript denoting an individual coating or diluent;(d) "Vi" means the volume of the coating or diluent i, as applied, used each day on a coating line or operation in units of gal or l, minus water and exempt VOC compounds;(e) "Ci" means the VOC content of the coating or diluent i, as applied, used each day on a coating line or operation in units of lb VOC/gal of coating, or kg VOC/l of coating less water and exempt VOC compounds, as determined from the Method 24 or 24A analysis and the calculation procedures in section 2.2 of EPA-340/1-86-016, A Guideline for Surface Coating Calculations, July, 1986;(f) "VT" means the total volume of all coatings, as applied, used each day on a coating line or operation in units of gal or l, minus water and exempt VOC compounds; and(g) The PW shall be equal to the sum of the products of Vi and Ci for coatings or diluents one through n, divided by VT , as in the following equation: Click here to view Image
N.H. Admin. Code § Env-A 804.06
#6087, eff 8-31-95; ss by #7788, eff 10-31-02; ss by #9802, eff 10-31-10
Amended by Volume XXXIX Number 19, Filed May 9, 2019, Proposed by #12762, Effective 5/1/2019, Expires 5/1/2029.