[Code of Federal Regulations]
[Title 46, Volume 7]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR190.07-5]

[Page 362]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 190_CONSTRUCTION AND ARRANGEMENT--Table of Contents
 
                Subpart 190.07_Structural Fire Protection
 
Sec. 190.07-5  Definitions.

    (a) Standard fire tests. A standard fire test is one which develops 
in the test furnace a series of time temperature relationships as 
follows:

                                                5 minutes--1,000[deg] F.
                                               10 minutes--1,300[deg] F.
                                               30 minutes--1,550[deg] F.
                                               60 minutes--1,700[deg] F.

    (b) A Class divisions. Bulkheads or decks of the A Class shall be 
composed of steel or equivalent metal construction, suitably stiffened 
and made intact with the main structure of the vessel; such as shell, 
structural bulkheads, and decks. They shall be so constructed, that if 
subjected to the standard fire test, they would be capable of preventing 
the passage of flame and smoke for 1 hour.
    (c) B Class bulkheads. Bulkheads of the B Class shall be constructed 
with approved incombustible materials and made intact from deck to deck 
and to shell or other boundaries. They shall be so constructed that, if 
subjected to the standard fire test, they would be capable of preventing 
the passage of flame for one-half hour.
    (d) C Class divisions. Bulkheads or decks of the C Class shall be 
constructed of approved incombustible materials, but need meet no 
requirements relative to the passage of flame.
    (e) Steel or other equivalent metal. Where the term steel or other 
equivalent metal is used in this subpart, it is intended to require a 
material which, by itself or due to insulation provided, has structural 
and integrity qualities equivalent to steel at the end of the applicable 
fire exposure.
    (f) Approved material. Where in this subpart approved materials are 
required, they refer to materials approved under the applicable subparts 
of part 164 of Subchapter Q (Specifications) of this chapter, as 
follows:

Deck coverings............................................       164.006
Structural insulation.....................................       164.007
Bulkhead panels...........................................       164.008
Incombustible materials...................................       164.009
Interior finish...........................................       164.012



[CGFR 67-83, 33 FR 1125, Jan. 27, 1968, as amended by CGD 74-155, 41 FR 
17910, Apr. 29, 1976]