[Code of Federal Regulations]
[Title 49, Volume 2]
[Revised as of October 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR173.442]

[Page 622-623]
 
                        TITLE 49--TRANSPORTATION
 
 CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 173--SHIPPERS--GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS--Table of Contents
 
               Subpart I--Class 7 (Radioactive) Materials
 
Sec. 173.442  Thermal limitations.

    A package of Class 7 (radioactive) material must be designed, 
constructed, and loaded so that--
    (a) The heat generated within the package by the radioactive 
contents will not, during conditions normally incident to transport, 
affect the integrity of the package; and
    (b) The temperature of the accessible external surfaces of the 
loaded package will not, assuming still air in the shade at an ambient 
temperature of 38  deg.C (100  deg.F), exceed either--
    (1) 50  deg.C (122  deg.F) in other than an exclusive use shipment; 
or

[[Page 623]]

    (2) 85  deg.C (185  deg.F) in an exclusive use shipment.