49 CFR 179.220-23 - Test of tanks.

§ 179.220-23 Test of tanks.
(a) Each inner container or compartment must be tested hydrostatically to the pressure specified in § 179.221-1. The temperature of the pressurizing medium must not exceed 100 °F. during the test. The container must hold the prescribed pressure for at least 10 minutes without leakage or evidence of distress. Safety relief devices must not be in place when the test is made.
(b) The inner container must be pressure tested before installation within the outer shell. Items which, because of assembly sequence, must be welded to inner container after its installation within outer shell must have their attachment welds thoroughly inspected by a nondestructive dye penetrant method or its equivalent.
(c) Pressure testing of outer shell is not a specification requirement.
[Amdt. 179-9, 36 FR 21343, Nov. 6, 1971]

Title 49 published on 2014-10-01

no entries appear in the Federal Register after this date.

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United States Code

Title 49 published on 2014-10-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 49 CFR 179 after this date.

  • 2015-01-23; vol. 80 # 15 - Friday, January 23, 2015
    1. 80 FR 3788 - Hazardous Materials: Miscellaneous Amendments (RRR)
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Pipeline and Hazardous Materials Safety Administration
      Notice of Proposed Rulemaking (NPRM).
      Comments must be received by March 24, 2015.
      49 CFR Parts 107, 171, 172, 173, 175, 176, 177, 178, 179 and 180