C.F.R. » Title 49 » CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION › SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS › PART 179—SPECIFICATIONS FOR TANK CARS › Subpart E—Specifications for Multi-Unit Tank Car Tanks (Classes DOT-106A and 110AW)

49 C.F.R. § 179.301

Individual specification requirements for multi-unit tank car tanks

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(a) In addition to § 179.300 the individual specification requirements are as follows:

DOT specification106A500-X106A800-X110A500-W110A600-W110A800-W110A1000-W
Minimum required bursting pressure, psig(1)(1)1250150020002500
Minimum thickness shell, inches13⁄3211⁄1611⁄323⁄815⁄3219⁄32
Test pressure, psig (see § 179.300-16)5008005006008001000
Safety relief devices, psig (see § 179.300-15)
Start-to-discharge, or burst maximum, p.s.i.375600375450600700
Vapor-tight, minimum psig300480300360480650
1 None specified.

(b) [Reserved]

[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, and amended by Amdt. 179-10, 36 FR 21355, Nov. 6, 1971; Amdt. 179-40, 52 FR 13049, Apr. 20, 1987; 65 FR 58632, Sept. 29, 2000; 66 FR 45390, Aug. 28, 2001]