ASTM E84-01 Standard Test Method for Surface Burning Characteristics of Building Materials

Designation: E84-01 Standard Test Method for Surface Burning Characteristics of Building Materials1
1. Scope
1.1This fire-test-response standard for the comparativesurface burning behavior of building materials is applicable toexposed surfaces such as walls and ceilings. The test isconducted with the specimen in the ceiling position with thesurface to be evaluated exposed face down to the ignition
source. The material. product, or assembly shall be capablc ofbeing mounted in the test position during the test.Thus,the
specimen shall either be self-supporting by its own structuralquality, held in place by added supports along the test surfacc,or secured from the back side.
1.2 The purpose of this test method is to determine thcrelative burning behavior of the material by observing theflame spread along the spccimen. Flame spread and smokedeveloped index are reported. However. there is not necessarilya relationship between these two measurements.
1.3 The use of supporting materials on the underside of thetest specimen has the ability to lower the flame spread indexfrom those which might be obtained if the specimen could belested without such support. These test results do not neces-sarily relatc to indices obtained by testing materials withoutsuch support.
1.4 Testing of materials that melt，drip,or delaminatc tosuch a degree that the continuity of the flame front is destroyed.results in low flame spread indices that do not relate directly toindices obtained by testing materials that remain in place.
1.5 The values stated in inch-pound units are to be regardedas the standlard.
1.6The text of this standard references notes and footnotesthat provide explanatory information. These notes and foot-notes.excluding those in tables andfigures,shall not beconsicered as requirements of the standard.
1.7 This stardard is ased ro wnecasure and describe therespomse of waterials.produects，or assemblies to hear andflainse uander controlled condirioris.bur does nor by itselfirecosporate all factors veqeired for fire-hazard or fire-risk