Detail of GB/T 20291.1-2014

Introduction of GB/T 20291.1-2014

1 Scope This part of GB/T 20291 is to specify essential performance characteristics of dry vacuum cleaners being of interest to the users and to describe methods for measuring these characteristics. This part is applicable for measurements of the performance of dry vacuum cleaners for household use in or under conditions similar to those in households. Note 1: Due to influence of environmental conditions, variations in time, origin of test materials and proficiency of the operator, most of the described test methods will give more reliable results when applied for comparative testing of a number of appliances at the same time, in the same laboratory and by the same operator. Note 2: This standard is not intended for battery-operated vacuum cleaners. For safety requirements, reference is made to GB 4706.1 and GB 4706.7. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60688 Electrical measuring transducers for converting a.c. electrical quantities to analogue or digital signals IEC 60704-1 Household and similar electrical appliances—Test code for the determination of airborne acoustical noise—Part 1: General requirements IEC 60704-2-1 Household and similar electrical appliances—Test code for the determination of airborne acoustical noise—Part 2-1: Particular requirements for vacuum cleaners ISO 554 Standard atmospheres for conditioning and/or testing—Specifications ISO 679 Methods of testing cements—Determination of strength ISO 1763 Carpets—Determination of number of tufts and/or loops per unit length and per unit area ISO 1765 Machine-made textile floor coverings—Determination of thickness ISO 1766 Textile floor coverings—Determination of thickness of pile above the substrate ISO 2424 Textile floor coverings—Vocabulary ISO 2439 Flexible cellular polymeric materials—Determination of hardness (indentation technique) ISO 3386-1 Polymeric materials, cellular flexible—Determination of stress-strain characteristics in compression—Part 1: Low-density materials ISO 5167-1 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full—Pan 1: General principles and requirements ISO 8543 Textile floor coverings—Methods for determination of mass ISO 12103-1 Road vehicles—Test dust for filter evaluation—Part 1: Arizona test dust 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 dry vacuum cleaner electrically operated appliance that removes dry material (e.g. dust, fibre, threads) from the surface to be cleaned by an airflow created by a vacuum developed within the unit, the removed material being separated in the appliance and the cleaned suction air being returned to the ambient 3.2 upright cleaner self-standing and floor-supported vacuum cleaner with the cleaning head forming an integral part of or permanently connected to the cleaner housing, the cleaning head normally being provided with an agitation device to assist dirt removal and the complete cleaner housing being moved over the surface to be cleaned by means of an attached handle 3.3 cleaning head plain nozzle or a brush attached to a connecting tube, or a power nozzle, separate or part of the cleaner housing, and that part of a vacuum cleaner which is applied to a surface to be cleaned 3.4 active nozzle cleaning head provided with a driven agitation device to assist dirt removal Note: The agitation device may be driven by an incorporated electric motor (motorized nozzle), an incorporated turbine powered by the air flow (air-turbine nozzle) or an incorporated friction or gear mechanism actuated by moving the cleaning head over the surface to be cleaned (mechanical nozzle).

Contents of GB/T 20291.1-2014

Foreword I 1 Scope 2 Normative references 3 Terms and definitions 4 General conditions for testing 5 Dry vacuum cleaning tests 5.1 Dust removal from hard flat floors 5.2 Dust removal from hard floors with crevices 5.3 Dust removal from carpets 5.4 Dust removal along walls 5.5 Fibre removal from carpets and upholstery 5.6 Thread removal from carpets 5.7 Maximum usable volume of the dust receptacle 5.8 Air data 5.9 Performance with loaded dust receptacle 5.10 Total emission while vacuum cleaning 5.11 Filtration efficiency of the vacuum cleaner 6 Miscellaneous tests 6.1 General 6.2 Motion resistance 6.3 Cleaning under furniture 6.4 Radius of operation 6.5 Impact resistance for detachable cleaning heads 6.6 Deformation of hose and connecting tubes 6.7 Bump test 6.8 Flexibility of the hose 6.9 Repeated bending of the hose 6.10 Life test 6.11 Mass 6.12 Weight in hand 6.13 Specific cleaning time 6.14 Dimensions 6.15 Noise level 6.16 Energy consumption 7 Test material and equipment 7.1 General 7.2 Material for measurements 7.3 Equipment for measurements 8 Instructions for use Annex A (Informative) Information on materials Annex B (Informative) Information at the point of sale Annex C (Informative) Guidance specification on verified carpets Bibliography