[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: 49CFR178.245-3]



[Page 880]

 

                        TITLE 49--TRANSPORTATION

 

   CHAPTER I--PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, 

                      DEPARTMENT OF TRANSPORTATION

 

PART 178_SPECIFICATIONS FOR PACKAGINGS--Table of Contents

 

               Subpart H_Specifications for Portable Tanks

 

Sec. 178.245-3  Design pressure.



    (a) The design pressure of a tank authorized under this 

specification shall be not less than the vapor pressure of the commodity 

contained therein at 46 [deg]C (115 [deg]F), or as prescribed for a 

particular commodity by part 173 of this chapter, except that in no case 

shall the design pressure of any container be less than 100 psig or more 

than 500 psig. When corrosion factor is prescribed by these regulations, 

the wall thickness of the tank calculated in accordance with Section 

VIII of the ASME Code (IBR, see Sec. 171.7 of this subchapter) shall be 

increased by 20 percent or 2.54 mm (0.10 inch), whichever is less.



    Note 1: The term design pressure as used in this specification is 

identical to the term ``MAWP'' as used in the ASME Code.



    (b) [Reserved]



[29 FR 18972, Dec. 29, 1964; Redesignated at 32 FR 5606, Apr. 5, 1967, 

as amended by 66 FR 45387, Aug. 28, 2001; 68 FR 75749, Dec. 31, 2003]