This specification provides the construction details, replacement procedures, and selection criteria for the standard test carpets and pads used when testing vacuum cleaners. The carpet types, which shall be constructed in accordance with the physical requirements provided herein, are classified as follows: shag custom tufted test carpet; plush custom tufted test carpet; multilevel custom tufted test carpet; and level loop test carpet. Padding, on the other hand, shall be of the sponge rubber type of waffle construction with a reinforcing skrim.

1.1 This specification provides construction details and a replacement procedure for the standard carpet and pad to be used when testing vacuum cleaners.

Note 1: The F11.21 subcommittee is actively pursuing new market-relevant carpets with the assistance of the carpet industry. Section 5, Table 1, has been revised to remove carpets listed in this specification that are no longer commercially available (that is, plush, Frieze).

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.