40 CFR Appendix Table 28 to Subpart G of Part 63, Deck Seam Length Factors a (SD) for Internal Floating Roof Tanks

Table 28 to Subpart G of Part 63 - Deck Seam Length Factors a (SD) for Internal Floating Roof Tanks
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 S D 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).

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United States Code

Title 40 published on 2015-08-22

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR Part 63 after this date.

  • 2017-04-06; vol. 82 # 65 - Thursday, April 6, 2017
    1. 82 FR 16736 - Mercury and Air Toxics Standards (MATS) Electronic Reporting Requirements
      GPO FDSys XML | Text
      Final rule.
      This final rule is effective on April 6, 2017.
      40 CFR Part 63