Supply clothing cloth high speed cutting machine, carving machine, high efficiency, high precision

2021-03-01 20:36:50 kkw13297312
0

Speaking of surgical masks, I believe that a lot of people are not strange, surgery and dressing change operations need to wear, but a lot of people often do not know what surgical masks use errors?


Surgical masks must meet YY 0469-2004 technical requirements for surgical masks, and important technical indicators include filtration efficiency, bacterial filtration efficiency and respiratory resistance:

1. Filtration efficiency: under the condition of air flow (30±2) L/min, the filtration efficiency of the aerodynamics median diameter (0.24±0.06) of livable sodium chloride aerosol is not less than 30%;

2. Bacterial filtration efficiency: under the stipulated conditions, the filtration efficiency of staphylococcus aureus aerosol with an average particle diameter of (3±0.3) is not less than 95%;

3. Respiratory resistance: under the condition of filtration efficiency flow rate, the inspiratory resistance should not exceed 49Pa, and the expiratory resistance should not exceed 29.4pa.

Surgical masks must meet YY 0469-2004 technical requirements for surgical masks, and important technical indicators include filtration efficiency, bacterial filtration efficiency and respiratory resistance:

1. Filtration efficiency: under the condition of air flow (30±2) L/min, the filtration efficiency of the aerodynamics median diameter (0.24±0.06) of livable sodium chloride aerosol is not less than 30%;

2. Bacterial filtration efficiency: under the stipulated conditions, the filtration efficiency of staphylococcus aureus aerosol with an average particle diameter of (3±0.3) is not less than 95%;

3. Respiratory resistance: under the condition of filtration efficiency flow rate, the inspiratory resistance should not exceed 49Pa, and the expiratory resistance should not exceed 29.4pa.

Awesome Image

Hitta de bästa paketeringsmaskinerna till priset av den äkta kinesiska leverantören Zhejiang Bespacker Machine Co. Ltd. Vi erbjuder ett stort antal fullt automatiska förpackningsmaskiner.

Online- brev

Telephone
Product
Inquiry
QQ