Solvent Feed = Makeup Solvent + Recovered Solvent + Change in the Amount of Solvent Contained in the Solvent Feed Holding Tank.

NR 440.67(4)(b)1.b. b. Measure and record the amount of polymer introduced into the affected facility and the solvent-to-polymer ratio of the spinning solutions and use the following equation to determine the amount of solvent feed:

where subscript “i” denotes each particular spinning solution used during the test period; values of “i” vary from one to the total number of spinning solutions, “n,” used during the calendar month.

NR 440.67(4)(b)2. 2. VOC emissions shall be determined each calendar month by use of the following equations:

=

=

=

=

where all values are for the calendar month only and where:

E is the VOC emissions in kg/Mg (lb/ton) solvent

SV is the measured or calculated volume of solvent feed in liters (gallons)

SW is the weight of solvent feed in Mg (ton)

MV is the measured volume of makeup solvent in liters (gallons)

MW is the weight of makeup in kg (lb)

N is the allowance for nongaseous losses, 13 kg/Mg (26 lb/ton) solvent feed to the spinning solution preparation system and precipitation bath. This value shall be used in all cases unless an owner or operator demonstrates to the satisfaction of the department that greater nongaseous losses occur at the affected facility. In this case, the greater value may be substituted in the equation.

SP is the fraction of measured volume that is actual solvent (excludes water)

D is the density of the solvent in kg/liter (lb/gallon)

K is a conversion factor, 1000 kg/Mg (2,000 lb/ton)

I is the allowance for solvent inventory variation or changes in the amount of solvent contained in the affected facility, kg/Mg (lb/ton) solvent feed (may be positive or negative)

IS is the amount of solvent contained in the affected facility at the beginning of test period, as determined by the owner or operator, in kg (lb)

IE is the amount of solvent contained in the affected facility at the close of the test period, as determined by the owner or operator, in kg (lb)

NR 440.67(5) (5) Reporting requirements.

NR 440.67(5)(a) (a) The owner or operator of an affected facility shall submit a written report to the department of the following:

NR 440.67(5)(a)1. 1. The results of the initial performance test; and

NR 440.67(5)(a)2. 2. The results of subsequent performance tests that indicate that VOC emissions exceed the standards in sub. (3). These reports shall be submitted quarterly at 3-month intervals after the initial performance test. If no exceedances occur during a particular quarter, a report stating this shall be submitted to the department semiannually.

NR 440.67(5)(b) (b) Solvent-spun synthetic fiber producing facilities exempted from these standards in sub. (1) (a) (those producing less than 500 Mg (551 tons) annually) shall report to the department within 30 days whenever extruded fiber for the preceding 12 calendar months exceeds 500 Mg (551 tons).

NR 440.67 History History: Cr. Register, September, 1986, No. 369, eff. 10-1-86; renum. (2) (a) (intro.) and 1. to 18. to be (2) (intro.) and (a) to (r) and am. (2) (intro.), am. (3) (a), r. (5) (c), Register, September, 1990, No. 417, eff. 10-1-90; am. (4) (b) 2. and (5) (a) 2., Register, July, 1993, No. 451, eff. 8-1-93; CR 06-109: am. (1) (a), (4) (b) (intro.) and (5) (b), renum. (3) (a) to be (3) and am., r. and recr. (4) (b) 2. Register May 2008 No. 629, eff. 6-1-08.

NR 440.675 NR 440.675 Volatile organic compound (VOC) emissions from the synthetic organic chemical manufacturing industry (SOCMI) air oxidation unit processes.

NR 440.675(1) (1) Applicability and designation of affected facility.

NR 440.675(1)(a) (a) The provisions of this section apply to each affected facility designated in par. (b) that produces any of the chemicals listed in sub. (8) as a product, co-product, by-product or intermediate, except as provided in par. (c).