1.1 This test method covers the measurement of the opera-tional ability of the vacuum cleaner, expressed as the accessdepth for a given furniture clearance above the floor.1.2 This test method can be used in testing household andcommercial vacuum cleaners.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility ofregulatory limitations prior to use.