This standard specifies the type, basic parameters, technical requirements, test methods, inspection rules, marking, packaging and storage of air purifiers. This standard applies to room air purifiers with an air volume not exceeding 1000m3/h. JB/T 7952-1995 Air Purifier JB/T7952-1995 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T7952-95
Air Purifier
Published on June 16, 1995
Ministry of Machinery Industry of the People's Republic of China
Implemented on July 1, 1996
Mechanical Industry Standard of the People's Republic of China
Air Purifier
Subject Content and Scope of Application
JB/T 7952-95
This standard specifies the type, basic parameters, technical requirements, test methods, inspection rules, marking, packaging and storage of air purifiers. This standard applies to room air purifiers with an air volume not exceeding 1000m\/h. 2 Reference standards
GB1236
GB9068
GB12218
GB13270
GB/T13306
JB/T4283
ZBJ72026
ZBJ72029
3 Terminology
Test method for aerodynamic performance of ventilator
General safety requirements for household and similar electrical appliances Determination of sound power level of noise for heating, ventilation and air conditioning equipment Engineering method Test method for performance of air filters for general ventilation Atmospheric test Dust standard sample model Air dust label
Fan coil unit
Heating and cooling ventilation equipment
Heating and cooling ventilation equipment
3.1 Clean air output
General technical conditions for packaging
Appearance quality and cleanlinessbZxz.net
Clean air output is equal to the product of air purification efficiency and air volume at the outlet of air purifier, which is used to evaluate the cleaning ability of air purifier.
3.2 Purification efficiency
The ratio of the difference in the count concentration of 2um dust particles in the inlet and outlet air of the air purifier without dust accumulation to the count concentration of the inlet air. The efficiency is expressed in percentage (%).
4 Type
4.1. Air purifiers are divided into four types according to their indoor installation methods: table-mounted, wall-mounted, hanging, and cabinet. According to the capture type, they are divided into three types: filtering, electrostatic, and composite. According to the fan type, it is divided into three types: centrifugal, cross-flow and axial flow. 4.2 The type code of air purifier shall be in accordance with the provisions of Table 1. Table 1
Installation method
Approved by the Ministry of Machinery Industry on June 16, 1995
Desktop type
Hanging type
Hanging type
Cabinet type
Implemented on July 1, 1996
Control type
Fan type
JB/T7952-95
Continued Table 1
Electrostatic type
Filter type
Compound type
Centrifugal type
Yellow flow type
Axial flow type
4.3 The model of the air purifier is composed of uppercase Chinese phonetic letters and Arabic numerals, and its representation method is as follows: K
Fan type code, see Table 1
Collection type code, see Table 1
Installation method code, see Table 1
Rated air volume of air purifier, m\/h
Basic code of air purifier
Model example:
KJ350-DGZ is a ceiling-mounted air purifier with a rated air volume of 350m*/h, a filter-type dust collector, and an axial flow fan. KJ500-TJG is a table-mounted air purifier with a rated air volume of 500m/h, an electrostatic dust collector, and a cross-flow fan. 5 Basic parameters
The performance parameters of the air purifier shall comply with the provisions of Table 2. 5.1
Rated air volume
6 Technical requirements
Purification efficiency%
Clean air output
≥140
≥210
≥700
6.1 The air purifier shall comply with the provisions of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 6.2 The rated voltage of the air purifier is 220V and the rated frequency is 50Hz. When the voltage fluctuates within the range of 198~242V, the air purifier should be used without failure.
6.3 According to the provisions of GB4706.1, the air purifier should be able to start working. 6.4 According to the conditions specified in this standard, the temperature rise of the air purifier shall comply with the relevant provisions of GB4706.1. 6.5 The insulation resistance, electrical strength and leakage current shall comply with the relevant provisions of GB4706.1. 6.6 The closing and opening of the switch and the temperature rise of the switch shall comply with the relevant provisions of GB4706.1. 2
JB/T7952-95
When the air volume of the air purifier is tested according to this standard, its deviation value is 10% of the rated air volume. 6.8
The ozone concentration released by the air purifier should not exceed 0.1mg/m\. 6.9
The main components of the air purifier should be made of materials that are harmless, odorless and self-contained, and ensure firmness and durability. The appearance of the air purifier should not have fingerprints or scratches, and comply with the relevant provisions of ZBJ72029. The external electrical performance of the air purifier shall comply with the relevant provisions of GB4706.1. The standard parts, outsourced parts and purchased parts of the air purifier must comply with the provisions of the relevant standards and be accompanied by a product certificate. Test method
The start-up test shall be in accordance with the relevant provisions of JB/T4283. Temperature rise test shall be in accordance with the relevant provisions of GB4706.1. 7.3 Insulation test, electrical strength test and leakage current test shall be in accordance with the relevant provisions of GB4706.1. 7.4 Switch test shall be in accordance with the relevant provisions of GB4706.1. 7.5 Air volume test shall be in accordance with the relevant provisions of GB1236. 7.6
Noise test shall be in accordance with the relevant provisions of GB9068. Input power test
Apply rated frequency and rated voltage to measure its input power. 7.8 Filtration efficiency test
7.8.1 The filtration efficiency test of the air purifier shall be carried out in the test room shown in Figure 1. 1-Sitting dust counter, 2-Recorder of measuring instrument, 3-Differential air conditioner, 4-High efficiency filter, 5-High core fan: 6-Suspension: 7-Dust generating device, 8-Air purifier Figure 1 Schematic diagram of air purifier test room (length × width × height, 4m × 4m × 2.8m) 7.8.2 The air temperature in the test room is 18～28℃, and the relative humidity of the air is 50%70%. 7.8.3 The dust in the test room shall comply with the relevant provisions of GB13270. 7.8.4 The dust generating device shall comply with the relevant provisions of GB12218. 7.8.5 The measuring instrument for measuring air purifier is a dust particle counter. 7.8.6 Test steps
Dust,
JB/T 7952-95
The air purifier is placed in the test room and its air inlet and outlet are connected to the short tube shown in Figure 2. The dust emission device is used to emit dust. Counter
South wind outlet
Air inlet
Sampling tube
Dust exchange counter
Figure 2 Schematic diagram of dust filtration efficiency test device 7.8.6.2 Turn on the ceiling fan and let it run for 3 minutes. Sample tube
7.8.6.3 Use a high-efficiency filter to make the initial concentration of dust in the test room reach the relevant provisions of GB12218. 7.8.6.4 Continuously measure the concentration three times at the inlet and outlet of the air purifier, and take the average value of each. If the relative error of the measured values ​​at the three points exceeds 10%, it should be re-measured.
7.8.7 The efficiency of the air purifier is calculated as follows: 7=1
)×100%
The count concentration of dust particles with a diameter of 2um in the air outlet of the air purifier: Where, C,—
C,—The count concentration of dust particles with a diameter of 2um in the air inlet of the air purifier. 7.9 The ozone concentration test is in accordance with the relevant provisions of the national ozone health standard. 8 Inspection rules
8.1 Each air purifier shall be inspected and qualified by the inspection department of the manufacturer according to this standard before it can leave the factory. 8.2 The inspection of air purifiers is divided into factory inspection, type inspection and random inspection. 8.2.1
Type inspection shall be conducted in any of the following cases: the first batch of products manufactured after identification and finalization or old products produced in a transferred factory; after formal production, when there are major changes in structure, process and materials that may affect product performance; when the product is produced again after being discontinued for 3 years;
When the national quality supervision agency proposes a type inspection requirement. JB/T7952-95
Various inspections of air purifiers shall be in accordance with the provisions of Table 3. 8.2.2
Test items
Appearance dimensions
Appearance quality
Input power
Filtration efficiency
Oxygen concentration
Air purifier spot check and inspection shall be in accordance with the provisions of Table 4. Batch N
≤1000
>10005000
Note; 1) The monthly output is regarded as a batch. Marking, packaging and storage
Qualified judgment number Ac
Unqualified judgment number Re
Each air purifier shall be fixed with a label in a conspicuous position. The label shall comply with the relevant provisions of GB/T13306 and shall be marked with the following contents: a.
Manufacturer name;
Product model and name;
Main technical parameters: air volume, efficiency, noise, voltage, frequency, power; Manufacturing date:
Product number.
9.2 Each air purifier should have a trademark in a conspicuous place. 9.3
The packaging of air purifiers should comply with the relevant provisions of ZBJ72026. Air purifiers should be stored in a dry and ventilated warehouse and prevent the product from being hit. Additional remarks:
This standard was proposed and coordinated by the Hefei General Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by Tongji University, Shanghai Hengfeng Electric Co., Ltd., and Beijing Sangpu Electric Co., Ltd. The main drafters of this standard are Li Qiangmin, Huang Jianhui, Chen Xinwei, 5
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