After the outbreak of the epidemic, masks have become an essential protective device in daily life, providing us with the most basic protection.It is very important to meet all quality standards of protective masks to protect people's health and safety. Therefore, the detection of protective masks is an essential key link.The multi-dimensional whole test of a mask contains more than 20 items, among which the bacterial filtration efficiency is one of the important indicators in the test.The Chonry peristaltic pump is used to transfer the bacteria suspension on the bacteria filtration efficiency detecting equipment of the mask, which provides the necessary conditions for accurate detection.
Testing Equipment for Bacterial Filtration Efficiency of Masks
Microbial indicators (such as Staphylococcus aureus suspension) are pumped to the aerosol nozzle of the aerosol generator by peristaltic pump, and the air source is also transported to the aerosol nozzle of the aerosol generator, so that the microbial suspension atomizes in the aerosol generator and produces bacterial aerosol.
After sampling the bacteria by biological sampler, the bacteria culture was carried out.Finally, the filtration efficiency of the mask was calculated based on the concentration of bacterial aerosol before and after filtration.
The Client Case
Customer: Manufacturer of mask bacterial filtration detection equipment
Application: Mask bacterial filtration detection
The facemask bacteria filtration and detection equipment manufactured by the customer is equipped with an invasive peristaltic pump for transporting the bacteria suspension to the aerosol chamber.The aerosol is produced when the suspension meets the high-pressure gas in the aerosol chamber.By comparing the concentration of bacterial aerosol before and after filtration, the filtration efficiency of the mask was tested to see whether it met the relevant standards.
Customers Requirements
The bacterial activity is not destroyed during the transfer of the bacterial suspension
Peristaltic pump flow is linearly adjustable, flow range: 0.006 ~ 3.0(ml/min)
Flow accuracy: higher than ±2.5%
Control mode: RS485 interface, which supports Modbus RTU communication protocol
Chonry has a complete precision pump product line and rich OEM product matching experience, can provide reliable, complete and economical customized solutions, help mask bacterial filtration efficiency detector to strictly control the quality of products.
