GroundRules
40 CFR Table 29 to Subpart G of Part 63: Table 29 to Subpart G of Part 63—Seal Related Factors for External Floating Roof Vessels
Where this section sits in the code
- Title 40—Protection of Environment
- CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
- SUBCHAPTER C—AIR PROGRAMS
- PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES
- Subpart G—National Emission Standards for Hazardous Air Pollutants From the Synthetic Organic Chemical Manufacturing Industry for Process Vents, Storage Vessels, Transfer Operations, and Wastewater
Seal type Welded vessels Riveted vessels
KS N KS N
Metallic shoe seal:
Primary seal only 1.2 1.5 1.3 1.5
With shoe-mounted secondary seal 0.8 1.2 1.4 1.2
With rim-mounted secondary seal 0.2 1.0 0.2 1.6
Liquid mounted resilient seal:
Primary seal only 1.1 1.0 a NA NA
With weather shield 0.8 0.9 NA NA
With rim-mounted secondary seal 0.7 0.4 NA NA
Vapor mounted resilient seal:
Primary seal only 1.2 2.3 NA NA
With weather shield 0.9 2.2 NA NA
With rim-mounted secondary seal 0.2 2.6 NA NA
a NA = Not applicable.
Collected 2026-08-27T02:26:04Z. Source file · JSON