design considerations for aluminum hull structures - Ship Structure ...

-124-APPENDIX BEXCERPTS FROMRULES AID REGULATIONSFoRCARGO AND MISCELLANEOUS VESSELSSubchapter ICG-257PART 92 - CONSTRUCTION AND AR.RJINGE.MENTP2.OTSTRUCTURAL FIRE PROTECTION92.0’7-1 Application(a) The provisions of tkIis subpart,with the exceptionof Section.92*OT-p0,-shallapply to all vessels of 4,000 ~ross tons and overcontracted for on or after January 1, 1962. Such vessels contractedfor prior to January 1, 1962, shall meet the requirements of Section92.Oi’-9O(a).(b) The provisions of this subpart, with the exceptionof Section92.07-09, shall apply to all industrial vessels of 300 gross tons andover but less than 4,000 gross tons, contracted for on or after July 1,1968, which carry in-excescontract.edfor prior to July 1, 1968, shallmeet the requirementsofof 12 industrial personnel. Such vesselsSection 92.07-90(b).92-07-sDefinitions92,.07-~(a) Standarddevelops in the testships as follows:S minutes - 1,000 degrees F10 minutes - 1,300 degrees F30 minutes - I,SSO degrees F60 minutes - 1,700 degrees 1?fire test. A “standard fire test” is one whichfurnace a series of time temperature relation-92.07-s(b) 11A!!Class divisions. Bulkheads or decks of the “A” Classshall be composed of steel or equivalent metal construction, suitablystiffened and made intact with the main structure of the vessel, suchas shell, structural bulkheads, and decks. They shall be so constructed,that if subjected to the standard fire test, they would be capable ofpreventi~ the passaEe of flame and smoke for one hour.92.07-~(c) l!B1lClass bulkheads. Bulkheads of the ‘W1’Class shall beconstructed with approved incombustible materials and made intact fromdeck to deck and to shell or obhe~ bounda~ies. They shall be so constructedthat, if subjected to the standard fire test, they would becapable of preventing the passage of flame and smoke for one-half hour.92.07-J(d) ‘ICI!Class divisions. Bulkheads or decks of the llCtrClassshall be constructed of approved incombustible materials, but needmeet no requirements relative to the passage of flame.