Information about 16 CFR Part 1632

Fire test of mattresses and mattress pads.


16 CFR Part 1632 - Standard for the flammability of mattresses and mattress pads (FF 4-72, amended).

Why test according to this standard?

The standard provides a test to determine the ignition resistance of a mattress or mattress pads, when exposed to lighted cigarette.

The standard also provides optional test methods for ticking and edge tape substitution that can be used to reduce the number of additional prototype tests.

The standard 16 CFR Part 1632 is a federal standard in the USA and all mattresses and mattress pads manufactured or imported are subjected to those requirements.

This test method only evaluates the ignitability of mattresses. To evaluate the burning behaviour, the mattress needs to be tested in full scale with larger ignition sources.

Example of materials that can be tested according to this standard

Mattresses, upholstered bed bases, mattress pads, divans, top mattresses etc.

Sample dimensions

Six complete prototype mattress or mattress pad surfaces shall be tested (minimum of three mattresses).

Retroactive to May 1, 2006, the “CPSC’s Interim Enforcement Policy”  reduces the number of mattresses to be tested according to 16 CFR Part 1632 to two tests. However, this is only possible if the same product is tested and good results is obtained according to the new open-flame mattress standard under 16 CFR Part 1633.

Short test description

A total of six complete mattresses ready for sale shall be tested. The top surface (sleeping surface) of the mattress is tested. Cigarettes are located on the smooth surface, seams, tufted locations, quilted locations, tape edges etc. of the mattress. A minimum of 18 cigarettes shall be used during each test.

The mattress is divided into two equal sections. One section is covered with a 100 % cotton bed sheet. The other section remains uncovered. A minimum of 9 lighted cigarettes are placed on the uncovered top section and a minimum of 9 lighted cigarettes are placed on the covered section. A second piece of cotton sheeting is then placed over the later group of cigarettes. The test is completed when all cigarettes have burned their complete length. The char damage length shall not be more than 2 inches (5.1 cm) in any direction from the nearest point of any individual cigarettes. This procedure is repeated 6 times.


Related Information


Fire testing – furniture and furnishing

Business Areas

RISE Safety and Transport

See also

Link to the standard

Contact Persons

Anna Bergstrand

Phone: +46 10 516 58 54

Per Thureson

Phone: +46 10 516 50 83

RISE Research Institutes of Sweden, Phone 010-516 50 00, E-mail

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