GroundRules
40 CFR Table 28 to Subpart G of Part 63: Table 28 to Subpart G of Part 63—Deck Seam Length Factors a (SD) for Internal Floating Roof Tanks
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
Deck construction Typical deck seam length factor
Continuous sheet construction b:
5-feet wide sheets 0.2 c
6-feet wide sheets 0.17
7-feet wide sheets 0.14
Panel construction d:
5 × 7.5 feet rectangular 0.33
5 × 12 feet rectangular 0.28
a Deck seam loss applies to bolted decks only. Units for SD are feet per square feet.
b SD = 1/W, where W = sheet width (feet).
c If no specific information is available, these factors can be assumed to represent the most common bolted decks currently in use.
d SD = (L + W)/LW, where W = panel width (feet), and L = panel length (feet).
Collected 2026-08-27T02:26:04Z. Source file · JSON