CFR > Title 49 - Transportation > SUBTITLE B—Other Regulations Relating to Transportation > CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (Parts 105–199) > SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS (Parts 171–181) > PART 178—SPECIFICATIONS FOR PACKAGINGS > SUBPART K—Specifications for Packagings for Class 7 (Radioactive) Materials (§178.350 to §178.360-4) > 178.360-3—Dimensions.

178.360-3—Dimensions.

(a) The inside diameter of the vessel may not exceed 30 cm (12 inches) exclusive of flanges for handling or fastening devices and must have wall thickness and length in accordance with the following:
Inside diameter maximum Threaded closure Wall thickness minimum—Flanged closure Length maximum
Inches Cm Inches Mm Inches Cm
2 5 3/32 2.5 Not less than that prescribed for schedule 40 pipe 16 41
6 15 1/8 3.2 72 183
12 30 1/4 6.5 72 183
(b) [Reserved]
[Amdt. 178-35, 39 FR 45245, Dec. 31, 1974. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990; 66 FR 45387, Aug. 28, 2001]