Regulations last checked for updates: May 14, 2024

Title 40 - Protection of Environment last revised: May 10, 2024
Appendix - Table 7 to Subpart WWWW of Part 63—Options Allowing Use of the Same Resin Across Different Operations That Use the Same Resin Type

As specified in § 63.5810(d), when electing to use the same resin(s) for multiple resin application methods, you may use any resin(s) with an organic HAP content less than or equal to the values shown in the following table, or any combination of resins whose weighted average organic HAP content based on a 12-month rolling average is less than or equal to the values shown the following table:

If your facility has the following resin type and application method . . . The highest resin weight is* * * percent organic HAP content, or weighted average weight percent organic HAP content, you can use for . . . is . . .
1. CR/HS resins, centrifugal casting 1 2a. CR/HS mechanical 3 48.0
b. CR/HS filament application48.0
c. CR/HS manual48.0
2. CR/HS resins, nonatomized mechanicala. CR/HS filament application46.4
b. CR/HS manual46.4
3. CR/HS resins, filament applicationCR/HS manual42.0
4. non-CR/HS resins, filament applicationa. non-CR/HS mechanical 3 45.0
b. non-CR/HS manual45.0
c. non-CR/HS centrifugal casting 1 245.0
5. non-CR/HS resins, nonatomized mechanicala. non-CR/HS manual38.5
b. non-CR/HS centrifugal casting 1 238.5
6. non-CR/HS resins, centrifugal casting 1 2non-CR/HS manual37.5
7. tooling resins, nonatomized mechanicaltooling manual91.4
8. tooling resins, manualtooling atomized mechanical45.9

1 If the centrifugal casting operation blows heated air through the molds, then 95 percent capture and control must be used if the facility wishes to use this compliance option.

2 If the centrifugal casting molds are not vented, the facility may treat the centrifugal casting operations as if they were vented if they wish to use this compliance option.

3 Nonatomized mechanical application must be used.

[70 FR 50133, Aug. 25, 2005]
authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.