Evaluation of Fire Test Methods for Aircraft Thermal Acoustical Insulation

Details

• Creators:
  Cahill, Patricia
• Corporate Creators:
  United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
• Corporate Contributors:
  United States. Federal Aviation Administration. Office of Aviation Research
• Subject/TRT Terms:
  • Aviation safety
  • Damping (Engineering)
  • Heat insulating materials
  • Test procedures
  • Flammability tests
  • Thermal acoustical insulation
  • Cotton swab test
  • Bunsen burner test
• Publication/ Report Number:
  DOT/FAA/AR-97/58
• DOI:
  https://doi.org/10.21949/1404584
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
• Abstract:
  This report presents the results of laboratory round robin flammability testing performed on thermal acoustical insulation blankets and the films used as insulation coverings. This work was requested by the aircraft industry as a result of actual incidents involving flame propagation on the thermal acoustical blankets. Vertical flammability testing was performed as specified in Federal Aviation Regulation (FAR) 25.853, Appendix F. In addition, a cotton swab test developed by the aircraft manufacturers was also evaluated. These cotton swab tests were performed by placing ignited alcohol saturated cotton swabs on a test-sized blanket and measuring the longest burn length. Test results indicated that the cotton swab tests produced consistent test results, whereas the vertical flammability tests did not. This was especially apparent with one particular film covering which passed the vertical test according to 50% of the participating laboratories while this same film during the cotton swab tests was reported to have been consumed by all but one laboratory which reported that 75% of the sample was destroyed.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/13256/dot_13256_DS1.pdf
• File Type:
  [PDF - 81.67 KB]
• Collection(s):
  FAA Fire Safety ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:6369ad217751931fd138ad15c11a6be216ab1b069eb0306a60552d9f2917f552354f7a424bde4752df4ea8888c23a14e649977758916846369246140c1f50a8e