Standard No.:	QB/T 5426-2019
English Name:	Household and similar electrical steam mop
Chinese Name:	家用和类似用途蒸汽拖把
Professional Classification:	QB    Professional Standard - Light Industry
Issued by:	Ministry of Industry and Information Technology
Issued on:	2019-12-24
Implemented on:	2020-7-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	11000 words
Price(USD):	330.0
Delivery:	via email in 1 business day

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2009. 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). This standard is issued for the first time. Household and similar electrical steam mop 1 Scope This standard specifies the terms and definitions, classification, parameters and designation, requirements, test methods, inspection rules, marking, packaging, transportation and storage of electrical steam mops for household and similar purposes. This standard is applicable to electrical steam mops for household and similar purposes (hereinafter referred to as "electrical steam mop") with single-phase rated voltage not exceeding 250V, used by non-professionals in homes, shops, schools and other similar places for cleaning floors or household surfaces. Note 1: This standard is applicable to: ——instant steam mop which quickly converts electric energy into steam; ——atmospheric pressure steam mop which converts electric energy into steam; ——Pressure steam mop with rated steam pressure not exceeding 0.4 MPa (4 bar) and converting electric energy into steam. Note 2: This standard is not applicable to: ——mop composed of metal or plastic mop head, mop rod and other metal or plastic parts; ——mop driven mechanically by pressing or pedaling, etc., which uses centrifugal force to spin and dehydrate; ——other non-electric drive mop. 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 191 Packaging—Pictorial markings for handling of goods GB/T 411 Printed and dyed cotton fabric GB/T 1019 General requirements for the package of household and similar electrical appliances GB/T 2423.2-2008 Environmental testing for electric and electronic products—Part 2: Test methods—Tests B: Dry heat GB/T 4100-2015 Ceramic Tiles GB 4706.1 Household and Similar Electrical Appliances—Safety—Part 1: General Requirements GB 4706.61 Household and similar electrical appliances—Safety—Particular requirements for surface-cleaning appliances for household use employing liquids or steam GB 4789.2 National food safety standard -Microbiological examination of food: Aerobic plate count GB 4789.15 Microbiological examination of food-counting of mold and yeast GB/T 5296.2 Instructions for use of products of consumer interest—Part 2: Household and similar electrical appliances GB/T 14252-2008 Woven carpet QB/T 1336-2000 Crayon 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB 4706.1 and GB 4706.61 and the following apply. 3.1 electrical steam mop device for removing dirt via applying electrically generated steam directly to the floor or household surface 3.2 steam flow Q steam flow of electrical steam mop per unit time when the steam temperature of outlet position is not lower than 100°C, also called steam water consumption note: It is expressed in gram per minute (g/min) 3.3 steam temperature of outlet position average temperature at the steam outlet in a specified time when the electrical steam mop contacts with the surface to be cleaned 3.4 steam waiting time t period of time from the electrical steam mop turned on to the outlet spitting out steam note: in seconds (s) 3.5 residual water average amount of dripping collected in a specified time when the electrical steam mop is not covered with cloth 3.6 cleaning effect the effect of cleaning bacteria and garbage residues on the floor or household surface per unit area through pushing and pulling the electrical steam mop 3.7 water tank capacity V the capacity of water which the tank can fill with note: in milliliter (mL) 3.8 eliminating bacterial rate RJ rate of removing or eliminating specific microorganisms in a bacteria eliminating test, with the electrical steam mop set at the highest gear note: expressed as a percentage 3.9 eliminating acarus rate RM rate of removing or eliminating acarus in an acarus eliminating test, with the electrical steam mop set at the highest gear note: expressed as a percentage 3.10 eliminating allergen rate Pi rate of removing or eliminating allergen in an allergen eliminating test, with the electrical steam mop set at the highest gear note: expressed as a percentage 4 Classification, parameters and designation 4.1 Classification The electrical steam mops are classified into different types according to the following items.   4.1.1 According to steam pressure: a) atmospheric pressure type; b) pressure type. 4.1.2 According to the heating mode: a) instant type; b) others. 4.1.3 According to the application: a) basic type (floor-cleaning); b) multi-functional type (may cleaning other surfaces after replacing the mop head). 4.1.4 According to the modularization: a) integrated; b) detachable type. 4.1.5 According to the cleaning effect: a) superior products; b) acceptable products. 4.2 Parameters of best series See Table 1. Table 1 List of best series parameter of electrical steam mop Item Parameter Rated power /W 800, 900, 1 000, 1 100, 1 200, 1 350, 1 500 Maximum steam generating capacity /(g/min) 12~32 Water tank capacity /mL 400, 600, 800, 1 000 Steam pressure /MPa Atmospheric pressure type — Pressure type ≤0.4   4.3 Model designation See Annex A for relevant provisions. 5 Requirements 5.1 Normal working conditions Electrical steam mop shall work properly under the following conditions: a) temperature: 5°C~40°C; b) relative humidity: not more than 95% (at 25°C); c) supply voltage: (220±10%) V; supply frequency: (50±1) Hz; d) places without flammable, corrosive gas, flammable gas or conductive dust; e) air pressure: 86 kPa~106 kPa. 5.2 Electrical safety It shall comply with the provisions in GB 4706.1 and GB 4706.61. 5.3 Appearance, structure and materials 5.3.1 The mop rod shall be smooth and straight; the rod surface shall be uniform in color, free of defects such as blank, sediment light spots, scratches, rust and pits. 5.3.2 Plastic parts shall be uniform in color, with smooth edges and without burrs or sharp edges. 5.3.3 All kinds of markings on the electrical steam mop should be pasted firmly, smoothly, without edge warping and damage. 5.3.4 High temperature resistance of steam outlet: The steam outlet shall be resistant to high temperature, and shall be free of discoloration or adhesion after the test specified in 6.4.2. 5.4 Mechanical strength of telescopic rod and handle Telescopic rods and handles shall possess certain mechanical strength. After the mechanical strength test specified in 6.5, no loosening, deformation or cracking is allowable for the telescopic rod and handle. 5.5 Steam performance 5.5.1 Steam waiting time Under the test conditions, the steam performance shall conform to the nominal steam waiting time of the manufacturer. 5.5.2 Steam temperature of outlet position Under the test conditions, the steam temperature of outlet position and temperature adjustment range shall conform to the nominal value specified by the manufacturer. 5.5.3 Steam output Under the test conditions, the outlet steam flow and flow adjustment range shall conform to the nominal value specified by the manufacturer. 5.5.4 Residual water When the atmospheric pressure steam mop is used without cloth covering, the water dripping amount within 1 min shall not exceed 15% of the nominal maximum steam amount. When the pressure steam mop is used without cloth covering, the water dripping amount within 1 min shall not exceed 25% of the nominal maximum steam amount. 5.6 Clean effect After the electrical steam mop is used to clean the dirt of crayons, the number of cleaning cycles, if acceptable, shall comply with Table 2. Table 2 Clean effect conformity assessment table Steam output Q/(g/min) Cleaning operation cycle number N Superior product Acceptable product 12~<25 ≤20 >20~25 25~32 ≤15 >15~20 5.7 Water tank capacity The measured value of water tank capacity shall not be less than 95% of the nominal value. 5.8 Service life Under the test conditions, the electrical steam mop may still start normally after working for at least 150 h. 5.9 Bacterial eliminating performance For electrical steam mop with clearly indicated bacterial eliminating function, the eliminating bacterial rate for specific microorganism shall not be less than 99.0%. 5.10 Eliminating acarus performance For electrical steam mop with clearly indicated acarus eliminating function, the eliminating acarus rate shall not be less than 80.0%. 5.11 Eliminating allergen performance For electrical steam mop with clearly indicated allergen eliminating function, the eliminating allergen rate shall not be less than 80.0%. 6 Test methods 6.1 Test conditions Unless otherwise specified, the test shall be conducted under the following conditions: a) The test shall be conducted in the environment free from external strong electricity, magnetic field interference and harmful gas, and the test machine shall be placed as specified in the operating instructions; b) laboratory temperature: (23±2)°C; c) test water temperature: (25±2)°C; d) supply voltage: (220±2%)V; e) supply frequency: (50±1)Hz; f) relative humidity: 45%~75%; g) atmospheric pressure: 95 kPa~105 kPa； h) test water: hardness of (1.50±0.10) mmol/l; i) cover cloth: the product's allocated cloth; j) ceramic tiles for test: dry-pressed ceramic tiles (E≤0.5% B I a) specified in Annex G of GB/T 4100-2015. 6.2 Accuracy of apparatuses Accuracy of apparatuses shall meet the following requirements: a) voltmeter: grade 0.5; b) single-phase electric energy meter: grade 1.0; c) thermometer: ±0.5°C; d) timer: ±0.1s; e) electronic scales: accurate to 0.1g; f) pressure gauge: accurate to 1 kPa; g) scale-measuring cup: the maximum measuring range is 1 000 mL. 6.3 Electrical safety It shall meet those specified in GB 4706.1 and GB 4706.61. 6.4 Appearance, structure and materials 6.4.1 Visual inspection and operation with relevant measuring tools. 6.4.2 High temperature resistance of steam outlet: the parts in direct contact with steam shall be tested at the highest design temperature of the product for 2h, according to Test Bb of GB/T 2423.2-2008. After the test, check whether the parts are bonded or deformed. 6.5 Mechanical strength of telescopic rod and handle 6.5.1 Telescopic rod 6.5.1.1 The detachable parts shall be disassembled before test (parts that do not need to frequently disassemble when using shall be disassembled for 10 times before test, and parts that need to disassemble when using shall be disassembled for 100 times before test). 6.5.1.2 Extend the telescopic rod at its longest extended state, lock and fix one end of the telescopic rod: ——The integrated steam mop shall be pulled and pushed by 150 N along the axial direction of the telescopic rod at the other end respectively for 1 min; ——The detachable steam mop shall be pulled and pushed by 80 N along the axial direction of the telescopic rod at the other end respectively for 1 min. 6.5.1.3 Place the telescopic rod extended to its longest state horizontally with both ends fixed: ——For the integrated steam mop, apply a weight of 15 kg to the middle part of the rod, and unload it after 3 minutes; ——For the detachable steam mop, apply a weight of 5 kg to the middle part of the rod, and unload it after 3 minutes. 6.5.2 Handle After assembling the electrical steam mop as specified in the operating instructions, fix the telescopic rod. ——For the integrated steam mop, apply a force of 70N in any direction of the handle and keeping for 3 min. After the test, visually inspect the handle and the connection state between the handle and the telescopic rod; ——For the detachable steam mop, apply a force of 50N in any direction of the handle and keeping for 3 min. After the test, visually inspect the handle and the connection state between the handle and the telescopic rod. 6.6 Steam performance 6.6.1 Steam waiting time Add test water to the electrical steam mop to the highest water level, the mop shall be operated as specified in the product instructions and work under rated voltage. Measure and record the time from switching on to steam spray for 3 consecutive times, and take the arithmetic mean value. 6.6.2 Steam temperature of outlet position As specified in the operating instructions, the temperature probes of thermocouple temperature tester shall be distributed at the positions specified in Figure 1, and the cover cloth shall be placed at the corresponding position of electrical steam mop. After filling the tank with water, turn on the electrical steam mop, and start testing 30s after the steam spray. Measure the value at a point (see Figure 1) selected at the cross section of steam outlet after continuous operation for 3 min, and record at least once per second. The arithmetic mean value of the temperature within 3 min shall be taken as the steam temperature of outlet position. Figure 1 Schematic diagram of thermocouple distribution 6.6.3 Steam output Operate as specified in the instructions. Under the test conditions, add the test water into the electrical steam mop to the highest water level, record the time from the 3rd minute after the steam spray, measure the total mass W1 before the test with an electronic weighing meter, test for at least 3 min, read the total mass W2 after the test and the test time t, and then calculate the steam output according to Equation (1). Q＝(W1－W2)/t (1) where, Q——the steam output, g/min; W1——the total mass before timing test, g; W2——the total mass at the end of the timing test, g; t——the time period of test, min.   6.6.4 Residual water Remove the cover cloth of the electrical steam mop, adjust the electrical steam mop to the maximum steam flow gear (except for special mode), and preheat it for 3 min under the test conditions. With the direction of its outlet parallel to the ground, the electrical steam mop shall be located at most 500 mm above the ground. Measure the quality of water that drops from the surface of the electrical steam mop within 5 min, and take the arithmetic mean value. 6.7 Clean effect It shall conform to the provisions of Annex B. 6.8 Water tank capacity Fill the water tank of the electrical steam mop with water, and then pour the water in the water tank into a scale-measuring cup in batches to calculate the total water capacity of the water tank (water tank capacity). Compare the measured capacity of water tank with its nominal capacity. 6.9 Service life Use test water to ensure that there is always water in the water tank. The electrical steam mop powered by rated voltage shall be adjusted to its maximum gear, started for 30 min and simulated normal walking (at a speed is 0.2 m/s), switch off for 15 min, and cumulative working time shall reach 150h. After the test, check whether the electrical steam mop can function normally and whether there is any electrical defect. 6.10 Bacterial eliminating performance It shall comply with the provisions in Annex C. 6.11 Acarus eliminating performance It shall comply with the provisions in Annex D. 6.12 Eliminating allergen performance It shall comply with the provisions in Annex E. 7 Inspection rules

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Classification, parameters and designation 5 Requirements 6 Test methods 7 Inspection rules Annex A (Informative) Model designation of electrical steam mop Annex B (Normative) Test methods for clean effect Annex D (Normative) Test method of eliminating acarus function Annex E (Normative) Test methods for eliminating allergen