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Electronic Code of Federal Regulations

e-CFR data is current as of December 11, 2019

Title 40Chapter ISubchapter CPart 63Subpart WWWW → Appendix


Title 40: Protection of Environment
PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES (CONTINUED)
Subpart WWWW—National Emissions Standards for Hazardous Air Pollutants: Reinforced Plastic Composites Production


Table 5 to Subpart WWWW of Part 63—Alternative Organic HAP Emissions Limits for Open Molding, Centrifugal Casting, and SMC Manufacturing Operations Where the Standards Are Based on a 95 Percent Reduction Requirement

As specified in §63.5805, as an alternative to the 95 percent organic HAP emissions reductions requirement, you may meet the appropriate organic HAP emissions limits in the following table:

If your operation type is .  .  .And you use .  .  .LYour organic HAP emissions limit is a1.  .  .
1. Open molding—corrosion-resistant and/or high strength (CR/HS)a. Mechanical resin application6 lb/ton.
   b. Filament application9 lb/ton.
   c. Manual resin application7 lb/ton.
2. Open molding—non-CR/HSa. mechanical resin application13 lb/ton.
   b. Filament application10 lb/ton.
   c. Manual resin application5 lb/ton.
3. Open molding—toolinga. Mechanical resin application13 lb/ton.
   b. Manual resin application8 lb/ton.
4. Open molding—low flame spread/low smoke productsa. Mechanical resin application25 lb/ton.
   b. Filament application14 lb/ton.
   c. Manual resin application12 lb/ton.
5. Open molding—shrinkage controlled resinsa. Mechanical resin application18 lb/ton.
   b. Filament application11 lb/ton.
   c. Manual resin application9 lb/ton.
6. Open molding—gel coat2a. Tooling gel coating22 lb/ton.
   b. White/off white pigmented gel coating22 lb/ton.
   c. All other pigmented gel coating19 lb/ton.
   d. CR/HS or high performance gel coat31 lb/ton.
   e. Fire retardant gel coat43 lb/ton.
   f. Clear production gel coat27 lb/ton.
7. Centrifugal casting—CR/HS3 4A vent system that moves heated air through the mold27 lb/ton.
8. Centrifugal casting—non-CR/HS3 4A vent system that moves heated air through the mold21 lb/ton.
7. Centrifugal casting—CR/HS3 4A vent system that moves ambient air through the mold2 lb/ton.
8. Centrifugal casting—non-CR/HS3 4A vent system that moves ambient air through the mold1 lb/ton.
9. SMC ManufacturingN/A2.4 lb/ton.

1Organic HAP emissions limits for open molding and centrifugal casting expressed as lb/ton are calculated using the equations shown in Table 1 to this subpart. You must be at or below these values based on a 12-month rolling average.

2These limits are for spray application of gel coat. Manual gel coat application must be included as part of spray gel coat application for compliance purposes using the same organic HAP emissions factor equation and organic HAP emissions limit. If you only apply gel coat with manual application, treat the manually applied gel coat as if it were applied with atomized spray for compliance determinations.

3Centrifugal casting operations where the mold is not vented during spinning and cure are considered to be closed molding and are not subject to any emissions limit. Centrifugal casting operations where the mold is not vented during spinning and cure, and the resin is applied to the open centrifugal casting mold using mechanical or manual open molding resin application techniques are considered to be open molding operations and the appropriate open molding emission limits apply.

4Centrifugal casting operations where the mold is vented during spinning and the resin is applied to the open centrifugal casting mold using mechanical or manual open molding resin application techniques, use the appropriate centrifugal casting emission limit to determine compliance. Calculate your emission factor using the appropriate centrifugal casting emission factor in Table 1 to this subpart, or a site specific emission factor as discussed in §63.5796.

[68 FR 19402, Apr. 21, 2003, as amended at 70 FR 50133, Aug. 25, 2005]

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