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Jiangdu Industrial Zone, Yangzhou City, Jiangsu Province
Yangzhou Jinghui Testing Machinery Co., Ltd
Jiangdu Industrial Zone, Yangzhou City, Jiangsu Province
1Meltblown fabric testing equipmentMain technical indicators:
1. The use of a cold gas aerosol generator produces continuous and stable aerosol particles, making it convenient to add the solution.
2. Using high-precision PM2.5 sensors to measure aerosol concentration.
3. Full process particle leakage prevention design to protect the safety of experimental personnel.
4. Compatibility and testing of particulate matter protection effectiveness and filtration efficiency using respirator samples.
5. Two sets of aerosol generators: salt particle aerosol generator and oil particle aerosol generator.
6. Equipped with an aerosol particle electrostatic charge neutralization device.
7. Pneumatic fixture with protective device, safe and convenient to use.
8. Configure temperature and humidity sensors to display real-time environmental temperature and humidity (temperature and humidity requirements: 25 ℃± 5 ℃, 30% RH ± 10% RH).
9. Configure glass rotor flowmeter, vacuum pump, and laser dust particle counter.
10. Filter efficiency detection range: 0-99.999%.
11. Filter efficiency detection flowmeter range (10-100) L/min, accuracy level 2.5.
12. Filtering efficiency sampling frequency: 1-9999 times/min can be set arbitrarily.
13. Filtration efficiency: particulate matter concentration: (20-30) mg/m3; Median diameter of counting: salt particles (0.075 ± 0.02) μ m, oil particles (0.185 ± 0.02) μ m; Geometric standard deviation of particle size distribution: salt particles ≤ 1.86, oil particles ≤ 1.60; Dynamic detection range (0.001-100) mg/m3, accuracy 1%.
14. The front door design of the protective effect testing chamber has good sealing and is equipped with operating gloves for easy replacement of the items to be inspected.
15. The protection effect test adopts a standard head mold: one standard head mold imitates the real situation of human wearing protection.
16. Protective effect of aerosol particles: The concentration range of the test chamber is (20-30) mg/m3, adjustable settings, and the concentration fluctuation is less than ± 10%; The aerosol generator produces a particle size distribution of 0.02-2 μ m, with a mass median diameter of 0.6 μ m for salt particles and 0.3 μ m for oil particles.
17. Protective effect aerosol concentration detection device: gas sampling flow rate (1-2) L/min, sampling frequency: 20 times/min (1-9999 times/min can be set arbitrarily), dynamic detection (0.001-100) mg/m3, accuracy 1%.
18. The protective effect is that the inhalation gas sampling tube is located at the lower end of the nostril (inside the oral cavity).
19. The protective effect adopts a respiratory simulator to simulate the human respiratory state.
20. Respiratory simulator: sinusoidal airflow, frequency 20 times/min, respiratory flow control (30 ± 1) L/min, respiratory flow range: 0-40 L/min.
21. Instrument accuracy level (precision level): Level 1
22. Control system: Computer controls the testing process, automatically collects data, and configures the computer and testing software.
23. Computer automatic testing and display: testing the concentration of the medium in the chamber, the concentration of the inhaled gas medium, and the background concentration; Automatic calculation: filtering efficiency, protective effect; Can save, output, query, and print test data.
24. Power supply: AC220V 50Hz
IIMeltblown fabric testing equipmentTechnical advantages:
1. Adopting a color high-definition LCD touch screen, the content is more intuitive and the operation is easier;
2. Equipped with a salt aerosol generator that can generate aerosols of specific particle sizes and concentrations;
3. Equipped with multiple series of fixtures, suitable for various types of inspections;
4. Built in high lifetime photometer module, cumulative sampling time, prompts for optical path cleaning;
5. Automatic control of aerosol generation, automatic calculation of capture efficiency and airflow resistance, reducing human intervention;
6. Built in high-precision electronic flowmeter and high-performance sampling pump to ensure flow stability;
7. Built in compressor with automatic pneumatic clamping function;
8. Comes with a built-in anti-static device;
9. Automatic infrared anti pinch protection function to protect personnel safety;
10. No aerosol leakage, high personnel protection;
11. The detection data can be exported and printed through a USB flash drive;
12. Optional oil aerosol generator.