The 81m³ purifier performance test chamber is often used to test the performance of air purifiers, especially the purification function of air purifiers.
Construction requirements
1. For the particle test, the concentration of particles above 0.3 um should be less than or equal to 1 000/L;
2. For the gaseous pollutant test, the concentration of formaldehyde, toluene and TVOC should be less than 50% of the corresponding limit value of GB/T 18883, and it should also meet the requirements of particulate matter test;
3. For the test of gaseous pollutants other than formaldehyde, toluene and TVOC, in addition to meeting the above two requirements, the background concentration of the corresponding target pollutants should not be higher than 50% of the GB/T 18883 limit.
GB/18801-2015 air purifier
GB/18803-2002 indoor air quality standards
GB21551.3-2010 Special requirements for air purifiers with antibacterial, sterilizing and purifying functions for household and similar electrical appliances IEC62301: 2005 Measurement of standby power of household appliances
EPAEnergystar U.S. Environmental Protection Agency Energy Star
GB4706.45 Special requirements for safe air purifiers for household and similar electrical purposes
Test steps:
1. Before the first test of the prototype, it should be run at the maximum gear for at least 1h under the specified test conditions. After the trial operation is over, install the prototype into the test chamber and keep the prototype closed;
2. Remove all other items in the test chamber that are not related to the experiment, and open the purification module to purify the background of the test chamber. If the background concentration of the gaseous target pollutant to be measured is lower than the relevant requirements of GB/T 18883-2002, start the temperature and humidity control device to ensure that the test chamber meets the specified test conditions at the beginning of the test;
3. Turn on the power monitoring and data acquisition system of the purifier performance test chamber;
4. Start the purification system of the test chamber, and close the purification system when the PM2.5 concentration in the test chamber is not higher than 1 μg/m³. After closing the purification system, test the background concentration of carbon dioxide in the 81m³ purifier performance test chamber, expressed in %;
5. Feed carbon dioxide into the test chamber, turn on the stirring fan, after reaching a certain amount, stir the stirring fan for another 10 minutes;
6. After stirring for 10min, use three carbon dioxide analyzers to measure the initial concentration of carbon dioxide respectively, and take the average value to calculate as the initial concentration of carbon dioxide C0. The initial concentration of carbon dioxide at the beginning of the test should be (0.5% + background concentration ± 0.01%); during the test, the stirring fan has been kept on;
7. After the initial concentration in the purifier performance test chamber is measured, turn on the new fan to be tested, start the maximum gear, and the time of opening is T=0 min. At the same time, carbon dioxide concentration collection starts. Collect and record once every 1 min, the continuous measurement time is the theoretical test time T, and T is calculated according to the formula;
8. Turn off the new fan, start the exhaust system of the test chamber, the carbon dioxide concentration in the test chamber is not higher than the background concentration, close the exhaust system of the test chamber,and open the test chamber.
| Internal dimensions of environmental test chamber |
6*4.5*3m, 81m³ |
| Manufacturer |
HUANYI instrument |
| Door |
Gate width 0.8W*2.0H (meters) |
| Temperature and humidity range |
10°C~+60°C,40~70%RH |
| Evenness |
Temperature ≤ 2°C; (no load) |
| Volatility |
Temperature≤±0.5°C |
| Instrument display accuracy |
Temperature: 0.1°C Humidity: 0.1RH |
| ventilation volume |
1~50 times/h |
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