IEC 60312-2004 pdf – Vacuum cleaners for household use – Methods of measuring the performance

IEC 60312-2004 pdf – Vacuum cleaners for household use – Methods of measuring the performance.
1.1 Scope This International Standard is applicable to vacuum cleaners for households use in or under conditions similar to those in households. The purpose of this standard is to specify essential performance characteristics of vacuum cleaners being of interest to the users and to describe methods for measuring these characteristics. NOTE 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. For safety requirements, reference is made to IEC 60335-1 and IEC 60335-2-2. For radio interference suppression requirements, reference is made to CISPR 14 (see annex B). 1.2 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 60704-1:1982, Test code for the determination of airborne acoustical noise emitted by household and similar electrical appliances − Part 1: General requirements IEC 60704-2-1:1984, Test code for the determination of airborne acoustical noise emitted by household and similar electrical appliances − Part 2: Particular requirements for vacuum cleaners ISO 554:1976, Standard atmospheres for conditioning and/or testing – Specifications ISO 679:1989, Methods of testing cements − Determination of strength ISO 2439:1997, Flexible cellular polymeric materials – Determination of hardness (indentation technique)
1.3.11 zig-zag pattern stroke pattern where the return stroke is directed slantwise towards the starting point of the next forward stroke (see figure 1) 1.3.12 test width outside width of the cleaning head less 20 mm 1.3.13 track width width of the visible track left in the dust-covered area of a given surface after a forward stroke with the vacuum cleaner in operation, the cleaning head being in full contact with the surface and adjusted in accordance with the manufacturer’s instructions 1.3.14 stroke width track width less 20 mm 1.3.15 active depth of cleaning head distance from the front edge of the cleaning head to its rear edge or a line 10 mm behind the rear edge of the suction opening on the underside of the cleaning head, whichever is the shortest 1.3.16 stroke speed speed of the cleaning head, moved as uniformly as possible, during a forward or a return stroke 1.3.17 cleaning cycle for a given measurement, the sequence of forward and return strokes to be carried out at a specified stroke speed over the test area according to the appropriate stroke pattern 1.3.18 specific cleaning time time required for one cleaning cycle of an unobstructed area of 1 m 2 1.3.19 dust removal ability ratio, in per cent, of the quantity of dust removed during a specified number of cleaning cycles to the quantity of dust distributed on a test area 1.3.20 thread removal ability ratio, in per cent, of the number of threads removed during one cleaning cycle to the number of threads distributed on a test carpet
1.4.2 Test equipment and materials To minimize the influence of electrostatic phenomena, measurements on carpets shall be carried out on a flat floor consisting of a smooth untreated pine plywood or equivalent panel, at least 15 mm thick and of a size appropriate for the test. Equipment and materials for measurements (devices, test carpets, test dust etc.) to be used in a test shall, prior to the test, be kept for at least 24 h at standard atmospheric conditions according to 1.4.1. 1.4.3 Voltage and frequency Measurements shall be carried out at rated voltage with a tolerance of ±1 % and, if applicable, at rated frequency. Vacuum cleaners designed for d.c. only shall be operated at d.c. Vacuum cleaners designed for both a.c. and d.c. shall be operated at a.c. Vacuum cleaners not marked with rated frequency shall be operated at either 50 Hz or 60 Hz, as is common in the country of use. For vacuum cleaners with a rated voltage range, measurements shall be carried out at the mean value of the voltage range if the difference between the limits of the range does not exceed 10 % of the mean value. If the difference exceeds 10 % of the mean value, measurements shall be carried out both at the upper and lower limits of the voltage range. NOTE If the rated voltage differs from the nominal system voltage of the country concerned, measurements carried out at rated voltage may give test results misleading for the consumer and additional measurements may be required. If the test voltage differs from the rated voltage, this shall be reported.