31 July 2011 C1 CIVIL AVIATION DEPARTMENT HONG KONG ...

and 121-198 respectively. Similar amendments have now been incorporatedin JAR-25 at Change 13. This new test standard sets a limit for the heatrelease rate and smoke emission from cabin materials when exposed to asource of radiant heat. Using the modified Ohio State University (OSU) rateof heat release apparatus for Heat Release Rate, testing has been adopted bythe FAA because of its good correlation with full-scale fire tests. Themodified NBS smoke chamber is used for smoke emission testing.2.5 The Director-General is in full agreement with the new FAA flammability andsmoke emission test standards introduced by FAR Amendments 25-61 and121-189 as amended by 25-66 and 121-198 and intends, by this Notice, torequire the same standards for those aeroplanes defined in paragraph 1.2.6 Under the provision of this Notice, aircraft already in service may continuewithout incorporating materials which comply with the new flammability andsmoke emission test standards until such a time as the cabin interior issubstantially renewed. In due course the Director-General may consider itnecessary to propose dates by which all aircraft shall be in compliance.3 Compliance3.1 With effect from 20 August 1988, but prior to 20 August 1990, all aeroplanesdefined in paragraph 1 above, which are either newly manufactured or are thesubject of a substantially complete cabin interior renewal, shall comply withthe requirements of paragraph 4.1 of this Notice.3.2 With effect from 20 August 1990, all aeroplanes defined in paragraph 1 above,which are either newly manufactured or are the subject of a substantiallycomplete cabin interior renewal, shall comply with the requirements ofparagraph 4.2 of this Notice.4 Requirements4.1 In addition to meeting the existing flammability test standards contained inBCAR Chapter D4-3, paragraph 6.1 or JAR 25.853, cabin interior ceiling andwall panels (other than lighting lenses), partitions, and the outer surfaces ofgalleys, large cabinets and stowage compartments (other than underseatstowage compartments and compartments for stowing small items such asmagazines and maps), shall satisfy the test standards of Part IV of Appendix Fof JAR-25, except that the total heat release over the first two minutes ofsample exposure shall not exceed 100 kilowatt-minutes per square metre, andthe peak heat release rate shall not exceed 100 kilowatts per square metre.4.2 In addition to meeting the existing flammability test standards contained inBCAR Chapter D4-3, paragraph 6.1, European CS 25.853 or JAR 25.853,cabin interior ceiling and wall panels (other than lighting lenses), partitions,and the outer surfaces of galleys, large cabinets and stowage compartments(other than underseat stowage compartments and compartments for stowing30 May 2006 AN-61 P.2