[Code of Federal Regulations]

[Title 49, Volume 2]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 49CFR179.100-18]



[Page 1041]

 

                        TITLE 49--TRANSPORTATION

 

   CHAPTER I--PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, 

                      DEPARTMENT OF TRANSPORTATION

 

PART 179_SPECIFICATIONS FOR TANK CARS--Table of Contents

 

 Subpart C_Specifications for Pressure Tank Car Tanks (Classes DOT-105, 

                         109, 112, 114 and 120)

 

Sec. 179.100-18  Tests of tanks.



    (a) Each tank shall be tested by completely filling tank and manway 

nozzle with water or other liquid having similar viscosity, at a 

temperature which shall not exceed 100 [deg]F during the test; and 

applying the pressure prescribed in Sec. 179.101. The tank shall hold 

the prescribed pressure for at least 10 minutes without leakage or 

evidence of distress.

    (b) Insulated tanks shall be tested before insulation is applied.

    (c) Caulking of welded joints to stop leaks developed during the 

foregoing test is prohibited. Repairs in welded joints shall be made as 

prescribed in AAR Specifications for Tank Cars, appendix W (IBR, see 

Sec. 171.7 of this subchapter).

    (d) Testing of exterior heaters is not a specification requirement.



[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967; 

66 FR 45186, Aug. 28, 2001; 68 FR 75760, Dec. 31, 2003]