Household and similar electrical appliances - Test code for the
determination of airborne acoustical noise - Part 2-9: Particular
requirements for electric hair care appliances
Information technology -- Document description and processing languages
-- Minimum requirements for specifying document rendering systems --
Part 1: Feature specifications for document rendering systems
interpretation sheet 1 - Safety of household and similar electrical
appliances - Part 2: Particular requirements for vacuum cleaners and
water suction cleaning appliances