This Standard sets out objective methods of engineering accuracy (engineering method, grade 2 according to ISO 2204) for determining sound power levels of airborne acoustical noise emitted by household and similar appliances within the specified frequency range of interest. This Standard does not apply to the following:(a) Appliances, equipment, or machines designed primarily for industrial or professional purposes.(b) Appliances which are integrated parts of a building or its installations such as equipment for air conditioning, heating, and ventilating (except household fans, cooker hoods, and free-standing heating appliances), oil burners for central heating, pumps for water supply, macerators, and pumps for sewerage systems.(c) Separate motors or generators.(d) Appliances intended specifically for outdoor use. Not included in this Standard are methods for determining sound power levels with greater precision accuracy (precision method, grade 1 according to ISO 2204) specified for example in AS 1217.2, AS 1217.3, and AS 1217.6. They may, however, be applied if the appropriate instrumentation and test environment are available.