What does the methenamine pill test measure?

What does the methenamine pill test measure?

ASTM D2859 or the methenamine pill test, is also called the Standard Method for Ignition Characteristics of Finished Textile Floor Covering Materials. This pass/fail test measures the size of the burn to determine flame resistance of textile floor coverings.

What is pill test for carpet?

The pill test was designed to determine the surface flammability of carpets and rugs when exposed to a small ignition source and to keep dangerously flammable products fiom distribution in commerce. Both standards require a timed burning tablet as the standard ignition source for flammability performance testing.

What is ASTM e84?

The ASTM E-84 is the standard test method for assessing the surface burning characteristics of building products to explore how the material might contribute to flame spread in the event of a fire. The test reports the Flame Spread index and Smoke Developed index of the tested product.

What is the name of the test that all carpets and large rugs must pass to be sold in the US?

All carpets must have an NBS Smoke Chamber Test of 450 or less, or it can not be legally manufactured in the United States. This includes all commercial and residential carpet. If the carpet is for sale, it needs to pass this test.

What is carpet flammability test?

The test measures the response or flame resistance to burning when a methenamine tablet (or pill) is ignited on a carpet or rug floor covering test sample under controlled conditions. The size of the burn hole or distance the carpet burns beyond the ignition point is measured.

What does a flame spread of 25 mean?

A numerical reference that measures how fast and far a flame spreads during a 10-minute test. CLASS A = Flame Spread Index of 25 or less; the best possible rating, awarded to fire-retardant building products, like concrete.

What kind of testing is performed on all carpeting sold within the United States?

Manufacturers and importers of carpets and rugs intended for general use must certify in a General Conformity Certificate (GCC) that the carpets and rugs comply with the applicable standard after the carpets and rugs have been subjected to testing or a reasonable testing program to ensure compliance and/or are properly …

What is the most accurate test for flammability in a 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.

What kind of carpet is fire resistant?

Residential Carpet Fibers Wool fibers are the most naturally fire resistant. Nylon is the second best choice. It has a higher melting point, burns and melts slowly, which makes it more fire resistant than other carpet made from synthetic materials.

What is Class A flame retardant?

Class A fire retardants have a flame spread rating of between zero and 25. These materials are effective against severe fire exposure. These materials are effective against light fire exposure. Class D materials have a flame spread rating of between 201 and 500. Class E materials have a flame spread rating of over 500.