ASTMD 2299&EN149 dual-channel particulate filtration efficiency tester
2 .Security
2.1 Safety Specifications
The equipment shall be operated in accordance with the standard operating codes for electrical use and experiments
2.2 Electrical
In case of emergency, you can unplug the power supply and disconnect all power supplies. The instrument will be powered off immediately and the test will stop.
3.Technical parameter:
1)Pressure: 0.4Mpa gas supply pressure
2)Flow rate: 32L/min, 85L/min, 95L/min
3)Humidity: 30% (±10)
4)Temperature: 25℃ (±5)
5)Test flow range: 15-100L/min
6)Test efficiency range: 0-99.999%
7)Average particle size of sodium chloride aerosol – 0.6 μm;
8)Sodium chloride aerosol concentration – (8±4) mg/m3;
9) Average particle size of paraffin oil aerosol – 0.4 μm;
10)Sodium chloride aerosol concentration – (20±5) mg/m3;
11)Minimum aerosol particle size – 0.1 μm;
12)Continuous air flow rate from 15 to 100 dm3/min;
13)Indication of permeability of anti-aerosol elements in the range from 0 to 99.9999%.
14) Fully automated process of determining the resistance of the filter material at a set air flow;
