It is suitable for testing the particle filtration efficiency of various medical and daily protective masks, respirators, melt blown cloth and other materials.
Standards
GB/T 19083-2010 Medical protective cover technical requirements 5.4 Filtration efficiency
YY/T 0469-2011 Medical surgical cover 5.6.2 Particle filtration efficiency
GB/T 32610-2016 Technical Specification for Daily Protective Covers Appendix A Test Method for Filtration Efficiency
GB 2626-2019 Respiratory protection self-suction filter anti-particulate respirator 6.3 filtration efficiency
GB 19082-2009 Technical requirements for medical disposable protective clothing 5.7 Filtration efficiency
EN 1822-3:2012 EN 149-2001
EN 14683: 2005 IEST-RP-CC021.1 NIOSH 42 CFR Part 84 etc.
Features
1. Dual position, dual channel, dual photometer, dual generator, truly realize oil and salt separation test;
2. Loading test method is adopted
3. Efficiency detection: 2 independent TSI high-precision photometers respectively for oil and salt to detect the mass concentration of upstream and downstream particles, accurate and stable sampling;
4. Flow detection: The system test flow is mainly provided by externally provided dry and clean compressed air. There is a built-in automatic controlled pressure and flow stabilization device to ensure stable measurement of flow.
5. Two sol generators can perform salt and oil tests on the same instrument to ensure rapid and stable adjustment of fogging concentration.
6. Resistance detection: The resistance pressure difference of the filter material will be obtained through the static pressure ring of the upstream and downstream test chambers, and a high-precision differential pressure transmitter is used to ensure the accuracy and stability of the pressure difference measurement.
Specifications
1. Test flow range: 15L/min-100L/min, accuracy 2%;
2. The cross-sectional area of the water flow: 100cm²; (KN95 cover fixture is optional)
3. Resistance test range: 0-1000Pa, resolution can reach 0.1Pa;
4. Filter efficiency test range: 0-99.999%, resolution 0.001%;
5. Test particle size: 0.3µm;
6. Concentration of sol particles: Salt: <200mg/m³, Oil: <200mg/m³;
7. Fog dust source: NaC1, wax or oil;
8. Fog source: dry and stable compressed air (optional)
9. Working power supply: AC220V, 50Hz, 1.5kW;
10. Weight: about 120kg;
11. Dimensions: (L1000mm×W600mm×H1600mm) 
