[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: 49CFR173.336]

[Page 596]
 
                        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 G--Gases; Preparation and Packaging
 
Sec. 173.336  Nitrogen dioxide, liquefied, or dinitrogen tetroxide, liquefied.

    Nitrogen dioxide, liquefied, or dinitrogen tetroxide, liquefied, 
must be packaged in specification cylinders as prescribed in 
Sec. 173.192. Specification cylinders prescribed in Sec. 173.192 with 
valve removed are authorized. Each valve opening must be closed by means 
of a solid metal plug with tapered thread properly luted to prevent 
leakage. Transportation in DOT 3AL cylinders is authorized only by 
highway or rail. Each cylinder must be cleaned in compliance with the 
requirements of Federal Specification RR-C-901C, paragraphs 3.3.1 and 
3.3.2 (incorporated by reference; see Sec. 171.7 of this subchapter). 
Cleaning agents equivalent to those specified in RR-C-901C may be used; 
however, any cleaning agent must not be capable of reacting with oxygen. 
One cylinder selected at random from a group of 200 or fewer and cleaned 
at the same time must be tested for oil contamination in accordance with 
Specification RR-C-901C, paragraphs 4.4.2.2 (incorporated by reference; 
see Sec. 171.7 of this subchapter) and meet the standard of cleanliness 
specified therein.

[67 FR 51651, Aug. 8, 2002]