[Code of Federal Regulations]
[Title 49, Volume 3]
[Revised as of October1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR193.2505]

[Page 101]
 
                        TITLE 49--TRANSPORTATION
 
 CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
                       TRANSPORTATION (CONTINUED)
 
PART 193--LIQUEFIED NATURAL GAS FACILITIES: FEDERAL SAFETY STANDARDS--Table of Contents
 
                          Subpart F--Operations
 
Sec. 193.2505  Cooldown.

    (a) The cooldown of each system of components that is subjected to 
cryogenic temperatures must be limited to a rate and distribution 
pattern that keeps thermal stresses within design limits during the 
cooldown period, paying particular attention to the performance of 
expansion and contraction devices.
    (b) After cooldown stabilization is reached, cryogenic piping 
systems must be checked for leaks in areas of flanges, valves, and 
seals.