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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 4288-2008 Household and similar electrical washing machine.
The following main technical changes have been made with respect to GB/T 4288-2008:
——Relevant references are supplemented in Clause 2 “Normative references”;
——In Clause 3 “Terms and definitions”, “electric washing machine” is described by classes and the contents of the original “impeller washing machine”, “drum washing machine”, “agitator washing machine”, “double-drive washing machine”, “washing machine”, “semi-automatic washing machine” and “automatic washing machine” are incorporated; the definitions of “mini washing machine” and “multi-drum/barrel washing machine” are added; “washing container capacity”, “test load mass”, “test detergent mass”, “rate of rinse”, “rate of abrasion”, “off mode”, “standby mode” and “annual energy consumption” are added for test items of “measuring method for washing container effective capacity of washing machine”, “test method for rinsing performance”, “test method for abrasion resistance”, “measuring method for off /standby power of washing machine” and “calculation method for annual energy consumption of washing machine” are added; the definition of “standard washing textile” is added and the definitions of “rated capacity” and “rated consumption of water” are improved;
——The specific contents of the original Clause 4 "Product classification" are listed in Annex B (Normative) Product classification and model designation;
—— In Clause 5, "Technical requirements", the original "5.1 Operating environment conditions" is revised to "5.1 General requirements" and rewritten; the contents of "5.12 Off/standby power” are added; due to the change of test method, the contents of "5.6 Rinsing performance", "5.7 Abrasion resistance" and "5.15 Vibration performance” are revised, and the contents of "5.18 Allowable deviation from indicated value" are improved; the relevant requirements for "rate of rinse", "rate of abrasion" and "spinning performance" are added. The original "5.11 General structure" and "5.12 Materials" are changed to "5.19 Complete machine structure and routine inspection" and "5.20 Materials" respectively, and are rewritten;
——In Clause 6 "Test methods", the use conditions of different "test water temperatures" in "6.1 Test conditions" are modified, and "6.1 Test conditions" are rewritten at the same time. In "6.2 Test instruments and apparatuses", the specific requirements of "electrical parameter measuring meter", "whiteness meter (or photoelectric reflectance meter)", "potentiometric titrator" and "vibration tester" are added, and the expression of "6.2 Test instruments and apparatuses" is adjusted. The relevant contents of "6.3 Preparation and requirements before formal test of prototype", "6.4 Measurement of washing container effective capacity", "6.12 Off/standby power test", "6.13 Annual energy consumption test" and "6.9.3 Measurement of spinning rotating speed” are added. Due to the change of test methods, the relevant contents of the original "6.4 Abrasion test", "6.5 Test on rinsing performance", "6.7 Determination of noise" and "6.11 Test on vibration performance" are revised;
—— In Clause 7 "Inspection rules", the contents of "7.4 End-of-manufacturing inspection" and "7.5 Type test" are adjusted, supplemented and improved;
—— In Clause 8, "8.1.3" is added to specify the contents that shall be marked on the product; and "8.1.4" is added to specify the marking requirements of rated capacity;
——Due to the change of test methods, the contents of "Annex A (Normative) Measuring method for washing container effective capacity of washing machine" are added;
——"Annex B (Normative) Product classification and model designation" is put forward after being improved on the basis of the original Clause 4 "Product classification", and it is adjusted to "normative" in this revision. Due to the change of the method of "test on washing ability", the relevant contents of "B.2 Specification" are revised and examples are added to "B.3 Model";
——The original "Annex A (Normative) Test method for washing performance” is adjusted to "Annex C (Normative) Test method for washing ability". In order to make the test load ratio method more standardized and clear, the original "A.4 Standard washing" is changed to "C.4 Standard washing textile" and the contents are expanded. The original "Table A.1 Specification of standard washing fabric" is changed to “Table C.1 Quantity of standard washing textile and standard contaminated cloth corresponding to different test load mass requirements"; "Table C.2 Specification of cotton standard washing textile” is added. In order to standardize the pre-washing state of test load, "C.4.4 Adjustment of standard washing textile" is added. In order to unify the test conditions, the original "Table A.3 Proportion of the second washing ingredient” is deleted, but only the contents of "proportion of the first washing ingredient" are reserved and adjusted to "Table C.3", and the contents of "C.5.2 Ingredient proportions of standard liquid detergents” are added. In order to standardize the operation method of "test on washing ability", the contents of "C.8 Test load placement method" and "C.9.4 Test time and program" are added, and the contents of "C.9.3 Detergent delivery method" are expanded and improved;
——Due to the adjustment of standard structure, the production method of contaminated cloth in the original standard is separated from the "test method for washing ability" and rewritten as "Annex D (Normative) Standard contaminated cloth";
——Due to the change of “test method for rinsing performance”, the contents of "Annex E (Normative) Test method for rinsing performance" are added;
——Due to the change of “test method for abrasion resistance", the contents of "Annex F (Normative)Test method for abrasion resistance" are re-formulated;
——The contents of “Annex G (Normative) Measuring method for off /standby power of washing machine” are added；
——The contents of “Annex H (Normative) Calculation method for annual energy consumption of washing machine” are added;
——The original "Annex E (Normative) Test method for wool washing performance” is adjusted to "Annex I (Normative) Test method for wool washing performance".
——The contents of “Annex J (Normative) Test method for vibration performance of washing machine” are added;
——The original “Annex D (Normative) Classification of main performance" is adjusted to "Annex K (Normative) Classification of main performance items", and the classification indexes of "rate of rinse", "rate of abrasion" and "vibration performance" are added. In order to comply with the technological progress of the industry, the original "Class D" index is deleted and the "Class A+" index is added.
This standard was proposed by China National Light Industry Council.
This standard is under the jurisdiction of National Technical Committee on Household Electric Appliances of Standardization Administration of China (SAC/TC 46).
The previous edition of this standard is as follows:
——GB/T 4288-1984, GB/T 4288-1992, GB/T 4288-2003 and GB/T 4288-2008.
Household and similar electrical washing machine
1 Scope
This standard specifies the terms and definitions, product classification, technical requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage of household and similar electrical washing machine (hereinafter referred to as "washing machine").
This standard is applicable to washing machines (including extractors) with single-phase rated voltage not exceeding 250V and used by non-professionals in home, shops, schools and other places.
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.
GB/T 411 Printed and dyed cotton fabric
GB/T 1019 General requirements for the package of household and similar electrical appliances
GB/T 2423.17 Environmental testing for electric and electronic products - Part 2: Test methods - Test Ka: Salt mist
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829 Sampling procedures and tables for periodic inspection by attributes (apply to inspection of process stability)
GB/T 4214.4 Test method for noise of household and similar electrical appliances - Particular requirements for washing machines and spin extractors
GB 4706.1 Household and similar electrical appliances - Safety - Part 1: General requirements
GB 4706.24 Household and similar electrical appliances - Safety - Particular requirements for washing machines
GB 4706.26 Household and similar electrical appliances - Safety - Particular requirements for spin extractors
GB/T 5296.2 Instructions for use of products of consumer interest - Part 2: Household and similar electrical appliances
GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods
GB/T 22939.5 Package of household and similar electrical appliances - Particular requirements for electric washing machine and dryer
GB/T 23119-2017 Household and similar electrical appliances - Water for performance testing
QB/T 4830-2015 Household mini electrical washing machine
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
electric washing machine
appliance driven by electric energy, which is used to wash clothes under the mechanical action
Note 1: Electric washing machines are divided into the following types by the washing mode:
——impeller washing machine: washing machine in which the laundry is totally or partially immersed in the washing water, and washed by the continuous rotation or regular forward and backward rotation of the impeller.
——drum washing machine: washing machine in which the laundry is placed in the drum, partially immersed in water, and washed by the continuous rotation of the drum or regular forward and backward rotation.
——agitator washing machine: washing machine in which the laundry is totally or partially immersed in the washing water and washed by the reciprocating motion of the stirring blades.
——double-drive washing machine: washing machine in which the laundry is completely or partially immersed in the washing water, and washed by the running of the impeller or stirring blade and the inner drum, driven by power in the same system, according to the set constant speed and constant speed ratio.
Note 2: Electric washing machines are divided into the following types by the automation degree and basic structure:
——washing machine: washing machine with washing, rinsing and spinning functions switched by manual operation.
——semi-automatic washing machine: washing machine with any two of the washing, rinsing and spinning functions switched automatically without manual operation.
——automatic washing machine: washing machine with washing, rinsing and spinning functions at the same time, which can be automatically switched without manual operation.
——mini washing machine: washing machine with rated washing capacity ≤1.5kg.
——multi-drum/barrel washing machine: washing machine equipped with two or more drums (barrels) which can be used for washing function, and at least one of which has a "common (standard) washing program" for washing cotton textile.
3.2
extractor
device for removing water from washed textile by mechanical action
3.2.1
spin extractor
device for removing water from washed textile by centrifugal action
3.2.2
device of extractor
device which is combined with a washing machine and removes water from washed textile by centrifugal or squeezing action
3.3
washing container capacity
internal space capacity of the container of a washing machine
3.3.1
washing container effective capacity
washing container capacity of a washing machine measured by the method given in Annex A
3.3.2
washing container rated capacity
washing container capacity of a washing machine stated by the manufacturer
3.4
standard washing textile
loaded textile used to carry out tests related to this standard
Note: There are two kinds of materials, namely cotton and polyester. The cotton standard washing textiles include bed sheets, shirts, napkins and handkerchiefs; the polyester standard washing textile is square towel.
3.5
rated capacity
maximum quality of standard washing textiles in the dry state that the washing machine/extractor can handle at one time as specified by the manufacturer
3.5.1
rated washing capacity
maximum quality of standard washing textiles in the dry state that can be washed at one time as specified by the manufacturer
3.5.2
rated spinning capacity
maximum quality of standard washing textiles in the dry state that can be extracted at one time as specified by the manufacturer
Note: If there is no spinning function, it may not be marked.
3.6
rated consumption of water
water consumption for a complete "common (standard) washing program" for cotton standard washing textiles as stated by the manufacturer or expressed in the instructions for use
3.6.1
rated water consumption of washing state
approximate amount of water used for one-time washing of cotton standard washing textiles as stated by the manufacturer or expressed in the instructions for use
Note: If multiple "rated water consumptions of washing state” are stated by the manufacturer or expressed in the instructions for use, it is advisable to specify the washing machine program corresponding to each water consumption.
3.6.2
rated water consumption of rinsing state
approximate amount of water used for one-time rinsing of cotton standard washing textiles as stated by the manufacturer or expressed in the instructions for use
Note: If multiple "rated water consumptions of rinsing state” are stated by the manufacturer or expressed in the instructions for use, it is advisable to specify the washing machine program corresponding to each water consumption.
3.7
test load mass
total mass of standard washing textile and standard test specimen (if contained) used for relevant tests of this standard
Note 1: Whether standard test specimen is contained is determined by specific test requirements.
Note 2: Standard test specimen refers to the test sample cloth other than standard washing textile required to be used in relevant tests, including standard contaminated cloth, standard abrasive specimen and standard wool telescopic specimen.
3.8
test detergent mass
mass of standard detergent to be added when carrying out relevant tests of this standard
3.9
working pressure
water supply pressure or pressure range to ensure the normal operation of the washing machine
3.10
washing water level
position of the static water surface when the corresponding water is injected into the empty washing container, so as to wash the standard washing textile of a certain mass
3.10.1
highest water level
water level for washing the cotton standard washing textile with rated capacity as specified by the manufacturer
3.10.2
lowest water level
water level for washing the cotton standard washing textile with the minimum mass as specified by the manufacturer
3.11
rated working state
state when the washing machine is powered at rated voltage and frequency, loads standard washing textile with rated capacity, and uses "common (standard) washing program" to wash, rinse and spin the textile (when washing, detergent shall be added according to the required dosage)
3.12
standard washing program
common program specified in the product instructions, which shall include the operation process of complete functions of washing, rinsing and spinning (if any)
3.13
rate of washing ability
ratio of the “ratio of washing ability” of the test prototype to that of the reference washing machine
3.14
evenness of washing
consistency of ratio of washing ability of each standard contaminated cloth after test on washing ability
3.15
rate of rinse
used to characterize the ability of washing machine to remove detergent, which is tested and calculated according to the method in Annex E
3.16
rate of abrasion
used to characterize the abrasion degree of washing machine to textile during washing, which is tested and calculated according to the provisions in Annex F 3.17
3.17
off mode
state of the washing machine at which its power supply is switched off using appliance control or switch that is accessible and intended for operation by the end user during normal use, with all controls other than the power switch inoperable, connected to the power supply in accordance with the instructions for use
3.18
standby mode
after the program stops, the appliance can maintain a low energy consumption state for a long time (>5min) when the end user does not interfere with the washing machine except unloading the load
3.19
annual energy consumption
estimated value of accumulated energy consumption, including standby energy consumption and shutdown energy consumption, of a washing machine after 200 complete tests on washing ability according to the test program in Annex C
3.20
wool washing program
program specifically used to wash wool marked on the washing machine or in the instructions for use, which is a running process including washing, rinsing, and spinning functions
3.20.1
wool washing shrinking ratio
percentage of area reduction of standard wool telescopic specimen after test compared with that before test, after a complete wool washing program
3.20.2
wool washing shrinking rate
ratio of the “wool washing shrinking ratio” of the test prototype to that of the reference washing machine
3.20.3
wool washing ratio of abrasion
percentage of mass reduction of standard wool telescopic specimen after test compared with that before test, after a complete wool washing program
3.20.4
wool washing rate of abrasion
ratio of the “wool washing ratio of abrasion” of the test prototype to that of the reference washing machine
4 Product classification
See Annex B for product classification and model designation of washing machines.
5 Technical requirements
5.1 General requirements
5.1.1 General
For multi-drum/barrel washing machine, it shall be examined within the scope of this standard, according to the nominal textile type of each part, by the washing programs stated by the manufacturer or expressed in the instructions for use.
Other types of washing machines shall meet the following requirements.
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Product Classification
5 Technical Requirements
6 Test Methods
7 Inspection Rules
8 Marking, Packaging, Transportation and Storage
Annex A (Normative) Product Classification and Model Naming
Annex B (Normative) Measurement Method for Washing Container Effective Capacity of Washing Machine
Annex C (Normative) Test Method for Washing Performance
Annex D (Normative) Standard Contaminated Fabric
Annex E (Normative) Test Method for Rinsing Performance
Annex F (Normative) Test Method for Abrasion Performance
Annex G (Normative) Measurement Methods for off/Standby Power of Washing Machine
Annex H (Normative) Calculation Method for Annual Energy Consumption of Washing Machine
Annex I (Normative) Test Method for Wool Washing Performance
Annex J (Normative) Test Method for Vibration Performance of Washing Machine
Annex K (Normative) Grading and Classification of Main Performance Items
References
