§179.220-6. Thickness of plates.
49 C.F.R. § 179.220-6
The wall thickness, after forming of the inner container shell and 2— 1 ellipsoidal heads must be not less than specified in § 179.221-1, or not less than that calculated by the following formula:
The wall thickness after forming of the inner container heads, if flanged and dished, must be not less than specified in § 179.221-1, or not less than that calculated by the following formula:
The wall thickness after forming of the cylindrical section and heads of the outer shell must be not less than seven-sixteenths of an inch.
See § 179.220-9 for plate thickness requirements for inner container when divided into compartments.
Notes, amendments, and revision history
Amendments
[Amdt. 179-9, 36 FR 21340, Nov. 6, 1971, as amended at 66 FR 45390, Aug. 28, 2001; 68 FR 75762, Dec. 31, 2003]
Authority
Authority: 49 U.S.C. 5101-5128; 49 CFR 1.81 and 1.97.
Source
Source: 29 FR 18995, Dec. 29, 1964, unless otherwise noted. Redesignated at 32 FR 5606, Apr. 5, 1967.
Amendments
[Amdt. 179-9, 36 FR 21340, Nov. 6, 1971, as amended at 66 FR 45390, Aug. 28, 2001; 68 FR 75762, Dec. 31, 2003]