A. Applicable Standards:
GB
2626-2019: Respiratory protection—Non-powered air-purifying particle respirator,
section 6.5, 6.6
GB/T
32610-2016: Technical specification of daily protective mask
B. Testing Principles:
1. The
tester is composed of an air source with an adjustable flow rate, a standard
human head model, an inspiratory and expiratory circuit system, and a respiratory
resistance measurement system.
2. A
special air path conversion element is adopted to ensure that the inspiratory
and expiratory circuit system are easy to be replaced.
3. Digital
display of respiratory resistance with zero point correction, accuracy
correction, and over-range alert function.
4. A
standard flow meter is adopted to ensure flow control accuracy.
5. Computer
control and data acquisition system provide real-time detection and output of
pressure control, breathing frequency control, and respiratory resistance test
data.
C. Technical Parameters
1. Flow
Rate: (85±1)L/min, 0.1L/min, better than ±2.5%
2. Head Model：L/M/S (New Standard)
3. Pressure
Range: 1500Pa±0.1Pa, better than 1%
4. Data
Storage: 500 Sets
5. Dimensions:
(W×D×H) (600*600*750)mm
6. Weight:
about 35kg
7. Power
Dissipation: 1.3w
8. AC220/50HZ
