Applicable standard for respirator resistance test equipment: GB 2626-2006 standard requirements (can be made according to customer requirements)
Technical specifications of respirator resistance test equipment:
1. Flow measurement range: 0-100L/min
2. Flowmeter accuracy: 3%
3. Electronic Digital Display Flow
4. Micropressure measurement range: 0-1000Pa
5. Real-time display of test pressure
6. Pumping rate: 100L/min (adjustable)
7. Real-time Digital Display of Gas Volume
8. Touch screen control of respirator resistance test equipment
9. The total inspiratory resistance of each sample of the respirator resistance test equipment should not exceed 350 PA and the total expiratory resistance should not exceed 250 PA.
10. Sample quantity and requirements of respirator resistance test equipment: 4 samples, 2 of which were untreated and 2 of which were pretreated. If the tested samples have different numbers, there should be two samples for each number, one of which is untreated sample and the other is pretreated sample.
Test method of respirator resistance test equipment:
1. Check the airtightness and working status of the detection device, adjust the ventilation to 85-plusmn; 1 L/min, and set the resistance of the detection device to 0.
2. Wear the test sample on the matching test die, adjust the position of the mask and the tightness of the headband to ensure the close of the mask and the test die. Then the ventilation volume was adjusted to 85-plusmn; 1 L/min, and the inspiratory resistance was measured and recorded.