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ASTM E 1995 Document Information:
Title
Standard Test Method for Measurement of Smoke Obscuration Using a Conical Radiant Source in a Single Closed Chamber, With the Test Specimen Oriented Horizontally
ASTM International
Publication Date:
Mar 1, 2008
Scope:
This is a fire-test-response standard.
This test method provides a means of measuring smoke obscuration
resulting from subjecting essentially flat materials, products, or
assemblies (including surface finishes), not exceeding 25 mm [1
in.] in thickness, in a horizontal orientation, exposed to
specified levels of thermal irradiance, from a conical heater, in
the presence of a pilot flame, in a single closed chamber. Optional
testing modes exclude the pilot flame.
The principal fire-test-response characteristic obtained from
this test method is the specific optical density of smoke from the
specimens tested, which is obtained as a function of time, for a
period of 10 min.
An optional fire-test-response characteristic measurable with
this test method is the mass optical density (see Annex A1), which
is the specific optical density of smoke divided by the mass lost
by the specimens during the test.
The fire-test-response characteristics obtained from this test
are specific to the specimen tested, in the form and thickness
tested, and are not an inherent property of the material, product,
or assembly.
This test method does not provide information on the fire
performance of the test specimens under fire conditions other than
those conditions specified in this test method. For limitations of
this test method, see 5.5.
Use the SI system of units in referee decisions; see IEEE/ASTM
SI-10. The inch-pound units given in brackets are for information
only.
This test method is used to measure and describe the
response of materials, products, or assemblies to heat and flame
under controlled conditions, but does not by itself incorporate all
factors required for fire hazard or fire risk assessment of the
materials, products, or assemblies under actual fire
conditions.
Fire testing of products and materials is inherently hazardous,
and adequate safeguards for personnel and property shall be
employed in conducting these tests. This test method may involve
hazardous materials, operations, and equipment. See also 6.2.1.2,
Section 7, and 11.7.2.
This standard does not purport to address all of the safety
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use.
Keywords:
- cone heater
- fire
- fire-test-response characteristic
- optical density
- smoke
- smoke obscuration
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