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ASTM D 3806 Document Information:
Title
Standard Test Method of Small-Scale Evaluation of Fire-Retardant Paints (2-Foot Tunnel Method)
ASTM International
Publication Date:
Oct 10, 1998
Scope:
This test method determines the protection a coating affords its
substrate, and the comparative
burning characteristics of coatings by evaluating the flame spread
over the surface when ignited
under controlled conditions in a small tunnel. This establishes a
basis for comparing
surface-burning characteristics of different coatings without specific
consideration of all the
end-use parameters that might affect surface-burning characteristics
under actual fire conditions.
In addition to the experimental flamespread rate, the weight of panel
consumed, time of
afterflaming and afterglow, char dimensions and index, and height of
intumescence may be measured
in this test. However, a relationship should not be presumed among
these measurements.
This standard should be used to measure and describe the properties of
materials, products, or
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.
The values stated in SI units are to be regarded as the standard. The
values given in parentheses
are for information only.
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:
- fire-retardant
- flame spread
- paints
- tunnel method
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