Particulate matter protection effect tester (mask)
It is used to test the protective effect of daily protective masks and other types of masks on particulate matter. Applicable to medical equipment inspection centers, safety protection inspection centers, labor protection inspection centers, drug inspection centers, disease prevention and control centers, textile inspection centers, hospitals, masks and respirator manufacturers, etc.
- Product Details
1.Main uses |
It is used to test the protective effect of daily protective masks and other types of masks on particulate matter. Applicable to medical equipment inspection centers, safety protection inspection centers, labor protection inspection centers, drug inspection centers, disease prevention and control centers, textile inspection centers, hospitals, masks and respirator manufacturers, etc. |
2. Applicable standards |
GB / T 32610-2016 Technical Specifications for Daily Protective Masks6.14 (Appendix B) |
3.Technical indicators |
1. Using a cold aerosol generator to produce continuous and stable aerosol particles, convenient for filling the solution. Zh |
2. Use high-precision PM2.5 sensor to measure aerosol concentration. |
3. The whole process of anti-leakage design of particulate matter, to protect the safety of laboratory personnel. |
4. 2 sets of aerosol generators: salt aerosol generator and oily aerosol generator. |
5. Equipped with aerosol particle neutralization device. |
6. Equipped with temperature and humidity sensors to display the environment temperature and humidity in real time (temperature and humidity requirements: 25 ℃ ± 5 ℃, 30% RH ± 10% RH). |
7. Configure laser dust particle counter. |
8. The protective effect test design opens the door in front of the warehouse, which has good sealing performance and is equipped with operating gloves to facilitate the replacement of masks to be inspected. |
9, the protective effect test uses a standard head mold: 1 standard head mold, imitating the real situation of people wearing protective masks. |
10. Protective effect Aerosol particles: Test chamber concentration range (20-30) mg / m3, adjustable settings, concentration fluctuation less than ± 10%; aerosol generator produces particle size distribution 0.02-2μm, mass median diameter: salt The particulate matter was 0.6 μm and the oil particulate matter was 0.3 μm. |
11, protective effect aerosol concentration detection device: gas sampling flow (1-2) L / min, sampling frequency: 20 times / min (1-9999 times / min can be arbitrarily set), dynamic detection (0.001-100) mg / m3, accuracy is 1%. |
12. Protective effect The inhaled gas sampling tube is directly below the nostril (in the mouth). |
13. The protective effect uses a breathing simulator to simulate human breathing. |
14. Breathing simulator: sinusoidal airflow, frequency 20 times / min, breathing flow control (30 ± 1) L / min, respirator flow range: 0-40 L / min. |
15. Instrument accuracy level (precision level): level 1 |
16. Control system: The computer controls the test process, automatically collects data, and configures special computers and test software. |
17. Computer automatic test and display: the medium concentration in the warehouse, the concentration of the inhaled gas medium, and the background concentration; automatic calculation: the protective effect; the test data can be saved, output, query and printed |
18. Power supply: AC220V 50Hz |