NR 440.65(2)(a)8.8. “Plant blending records” means those records which document the weight fraction of organic solvents and solids used in the formulation or preparation of inks at the vinyl or urethane printing plant where they are used. NR 440.65(2)(a)9.9. “Rotogravure print station” means any device designed to print or coat inks on one side of a continuous web or substrate using the intaglio printing process with a gravure cylinder. NR 440.65(2)(a)10.10. “Rotogravure printing line” means any number of rotogravure print stations and associated dryers capable of printing or coating simultaneously on the same continuous vinyl or urethane web or substrate which is fed from a continuous roll. NR 440.65(2)(a)11.11. “Vapor capture system” means any device or combination of devices designed to contain, collect and route organic solvent vapors emitted from the flexible vinyl or urethane rotogravure printing line. NR 440.65(2)(b)(b) As used in this section, symbols not defined in this paragraph have the meanings given in s. NR 440.03. NR 440.65(2)(b)1.1. “a” means the gas stream vents exiting the emission control device. NR 440.65(2)(b)2.2. “b” means the gas stream vents entering the emission control device. NR 440.65(2)(b)3.3. “f” means the gas stream vents which are not directed to an emission control device. NR 440.65(2)(b)4.4. “Caj” means the concentration of VOC in each gas stream (j) for the time period exiting the emission control device, in parts per million by volume. NR 440.65(2)(b)5.5. “Cbi” means the concentration of VOC in each gas stream (i) for the time period entering the emission control device, in parts per million by volume. NR 440.65(2)(b)6.6. “Cfk” means the concentration of VOC in each gas stream (k) for the time period which is not directed to an emission control device, in parts per million by volume. NR 440.65(2)(b)7.7. “G” means the weighted average mass of VOC per mass of ink solids applied, in kilograms per kilogram. NR 440.65(2)(b)8.8. “Mci” means the total mass of each dilution solvent (j) added at the print line in the time period determined from plant records, in kilograms. NR 440.65(2)(b)10.10. “Qaj” means the volumetric flow rate of each effluent gas stream (j) exiting the emission control device, in standard cubic meters per hour. NR 440.65(2)(b)11.11. “Qbi” means the volumetric flow rate of each effluent gas stream (i) entering the emission control device, in standard cubic meters per hour. NR 440.65(2)(b)12.12. “Qfk” means the volumetric flow rate of each effluent gas stream (k) not directed to an emission control device, in standard cubic meters per hour. NR 440.65(2)(b)13.13. “E” means the VOC emission reduction efficiency (as a fraction) of the emission control device during performance testing. NR 440.65(2)(b)14.14. “F” means the VOC emission capture efficiency (as a fraction) of the vapor capture system during performance testing. NR 440.65(2)(b)15.15. “Woi” means the weight fraction of VOC in each ink (i) used in the time period as determined from Method 24 of 40 CFR part 60, Appendix A, incorporated by reference in s. NR 440.17 (1), manufacturer’s formulation data, or plant blending records, in kilograms per kilogram. NR 440.65(2)(b)16.16. “Wxi” means the weight fraction of solids in each ink (i) used in the time period as determined from Method 24 of 40 CFR part 60, Appendix A, incorporated by reference in s. NR 440.17 (1), manufacturer’s formulation data, or plant blending records, in kilograms per kilogram. NR 440.65(2)(b)17.17. “Woj” means the weight fraction of VOC in each dilution solvent (j) added at the print line in the time period determined from Method 24 of 40 CFR part 60, Appendix A, incorporated by reference in s. NR 440.17 (1), manufacturer’s formulation data, or plant blending records, in kilograms per kilogram. NR 440.65(3)(a)(a) On and after the date on which the performance test required by s. NR 440.08 has been completed each owner or operator subject to this section shall either: NR 440.65(3)(a)1.1. Use inks with a weighted average VOC content less than 1.0 kilogram VOC per kilogram ink solids at each affected facility, or NR 440.65(3)(a)2.2. Reduce VOC emissions to the atmosphere by 85% from each affected facility. NR 440.65(4)(a)1.1. Method 24 for analysis of inks. If nonphotochemically reactive solvents are used in the inks standard gas chromatographic techniques may be used to identify and quantify these solvents. The results of Method 24 may be adjusted to subtract these solvents from the measured VOC content. NR 440.65(4)(a)2.2. Method 24A for VOC concentration (the calibration gas shall be propane);