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What is ASTM E648?

What is ASTM E648?

ASTM E648 (the same test as NFPA 253) is ASTM’s Standard Test Method for Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat Energy Source. This test measures the flame spread of flooring systems, like carpet, in corridors and exits.

What is critical radiant flux?

The Critical Radiant Flux can be defined as the minimum radiant energy a fire needs to sustain flame propagation on the material. The lower the CRF result number the greater the tendency of the material to spread flame.

What NFPA 253?

NFPA 253: Standard Method of Test for Critical Radiant Flux of Floor Covering Systems Using a Radiant Heat Energy Source.

What is ASTM E648 class1?

A Class I rating requires a minimum critical radiant flux of 0.45 watts/cm2 in accordance with standard test method, NFPA 253 (or ASTM-E648), for critical radiant flux of floor covering systems using a radiant heat energy source.

What is ASTM f710?

Moisture retarders recommended under all on- and below-grade concrete floors. …

What is monolithic vinyl?

Class I Monolithic, which means through color tile with no backing. Class II Surface Decorated, which usually means an “inlaid” type tile with a backing. Class III, Printed Film Vinyl Tile, which is a photographic print film with a clear vinyl wearlayer and a backing system.

What is the most accurate test for flammability of carpet?

The surface flammability of carpet can be tested in several ways. The most common testing methods for small carpets/rugs are DOC FF1-70, commonly called the “pill test,” and DOC FF2-70. With DOC FF1-70, eight 9″ x 9″ specimens are tested.