This International Standard is applicable to household electric tumble dryers of the automatic and non-automatic type, with or without a cold water supply and incorporating a heating device. This excludes tumble dryers which use gas or other fuels as a heating source. The object is to state and define the principal performance characteristics of household electric tumble dryers of interest to users and to describe standard methods for measuring these characteristics. NOTE This International Standard applies also to tumble dryers for communal use in blocks of flats or in launderettes. It does not apply to tumble dryers for commercial laundries.