1.1 ,This test method calculates the overall A-weighted sound power level emitted by small portable upright, canister, combination vacuum cleaners, backpack vacuum cleaners, hard-floor cleaning machines, extractors, and central vacuum cleaner motorized nozzles intended for operation in domestic and commercial applications.
1.1.1 ,To determine the Sound Power Level of a central vacuum at the power unit location refer to Test Method F2544.