Mi is the mass of as-purchased coating material, i, applied in a month, kg

q is the number of different materials added to the coating material

Chij is the organic HAP content of material, j, added to as-purchased coating material, i, expressed as a mass fraction, kg/kg

Mij is the mass of material, j, added to as-purchased coating material, i, in a month, kg

Mi is the mass of as-purchased coating material, i, applied in a month, kg

å

å

=

=

+

÷

÷

ø

ö

ç

ç

è

æ

+

=

  (Equation 1b)

where:

Cavi is the monthly average, as-applied, volatile organic content of coating material, i, expressed as a mass fraction, kg/kg

Cvi is the volatile organic content of coating material, i, expressed as a mass fraction, kg/kg

Mi is the mass of as-purchased coating material, i, applied in a month, kg

q is the number of different materials added to the coating material

Cvij is the volatile organic content of material, j, added to as-purchased coating material, i, expressed as a mass fraction, kg/kg

Mij is the mass of material, j, added to as-purchased coating material, i, in a month, kg

NR 466.25(3)(b) (b) Each coating material as-applied meets the mass fraction of coating solids standard in s. NR 466.23 (1) (b) 3. You shall demonstrate that each coating material applied at an existing affected source contains no more than 0.20 kg of organic HAP per kg of coating solids applied and each coating material applied at a new affected source contains no more than 0.08 kg of organic HAP per kg of coating solids applied. You shall demonstrate compliance in accordance with subds. 1. and 2.

NR 466.25(3)(b)1. 1. Determine the as-applied coating solids content of each coating material following the procedure in s. NR 466.24 (3) (d). You shall calculate the as-applied coating solids content of coating materials which are reduced, thinned or diluted prior to application, using Equation 2:

å

å

=

=

+

÷

÷

ø

ö

ç

ç

è

æ

+

=

  (Equation 2)

where:

Csi is the coating solids content of coating material, i, expressed as a mass fraction, kg/kg

Mi is the mass of as-purchased coating material, i, applied in a month, kg

q is the number of different materials added to the coating material

Csij is the coating solids content of material, j, added to as-purchased coating material, i, expressed as a mass-fraction, kg/kg

Mij is the mass of material, j, added to as-purchased coating material, i, in a month, kg

NR 466.25(3)(b)2. 2. Calculate the as-applied organic HAP to coating solids ratio using Equation 3:

=

  (Equation 3)

where:

Hsi is the as-applied, organic HAP to coating solids ratio of coating material, i

Cahi is the monthly average, as-applied, organic HAP content of coating material, i, expressed as a mass fraction, kg/kg

Casi is the monthly average, as-applied, coating solids content of coating material, i, expressed as a mass fraction, kg/kg

NR 466.25(3)(c) (c) Monthly average organic HAP content of all coating materials as-applied is less than the mass percent limit in s. NR 466.23 (1) (b) 2. Demonstrate that the monthly average as-applied organic HAP content of all coating materials applied at an existing affected source is less than 0.04 kg organic HAP per kg of coating material applied, and all coating materials applied at a new affected source are less than 0.016 kg organic HAP per kg of coating material applied, as determined by Equation 4: