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ASTM F814

Revision 84B, December 28, 1984

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Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials for Aerospace Applications



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Product Details:

  • Revision: Revision 84B, December 28, 1984
  • Published Date: December 28, 1984
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 33
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:



1. Scope

1.1 This test method covers determination of the specific optical density of smoke generated by solid aerospace materials and assemblies, including insulated wire, in thicknesses up to 1 in. (25.4 mm) for flat specimens except for thermoplastic foams which shall be restricted to a maximum thickness of 0.5 in. (12.7 mm), and up to ┬╝ in. (6.35 mm) in diameter for insulated wire specimens. Measurement is made of the attenuation of a light beam by smoke (suspended solid and liquid particles) accumulating within a closed chamber, due to nonflaming pyrolitic decomposition and flaming combustion. Results are expressed in terms of specific optical density which is derived from a geometric factor and the measured optical density, a measurement characteristic of the concentration of smoke.

1.2 This test method although based upon and similar in most respects to Test Method E 662, intended primarily for building construction, equipment and furnishing materials, and assemblies, does differ from Test Method E 662 in procedures and apparatus, as specifically required for aerospace applications.

1.3 This standard should be used to measure and describe the properties of material, products, and assemblies in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use.

1.4 The values stated. in inch-pound units are to be regarded as the standard.

1.5 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and hearth practices and determine the applicability of regulatory limitations prior to use.