16 CFR 1630—STANDARD FOR THE SURFACE FLAMMABILITY OF CARPETS AND RUGS (FF 1–70)

Scope and application

(a) This Standard provides a test method to determine the surface flammability of carpets and rugs when exposed to a standard small source of ignition
under carefully prescribed draftprotected conditions. It is applicable to all types of carpets and rugs used as floor covering materials regardless of
their method of fabrication or whether they are made of natural or synthetic fibers or films, or combinations of or substitutes for these.

(b) One of a kind, carpet or rug, such as an antique, an Oriental, or a hide, may be excluded from testing under this Standard pursuant to conditions
established by the Consumer Product Safety Commission.

General requirements

(a) Summary of test method. This method involves the exposure of each of eight conditioned, replicate specimens of a given carpet or rug to a
standard igniting source in a draft-protected environment, and measurement of the proximity of the charred portion to the edge of the hole in the prescribed
flattening frame.

(b) Test criterion. A specimen passes the test if the charred portion does not extend to within 2.54 cm. (1.0 in.) of the edge of the hole in the flattening frame
at any point.

(c) Acceptance criterion. At least seven of the eight specimens shall meet the test criterion in order to conform with this Standard.