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The layout of the P3 laboratory The layout of the P3 laboratory

2019-11-06 13:50:20 来源: 重庆实验台-重庆通风柜-重庆实验室家具_重庆哥尔摩科技有限公司 Hits: 68 2019-11-06 13:50:20 Source: Chongqing Experimental Bench-Chongqing Fume Hood-Chongqing Lab Furniture_Chongqing Golmud Technology Co., Ltd.


P3 实验室的布局,应考虑哪些原则 What principles should be considered for the layout of P3 laboratories

P3 laboratory design layout

P3 实验室 ,要做成负压,以防止微生物污染的外逸。 For bio-hazardous P3 laboratories , negative pressure should be made to prevent the escape of microbial pollution. Therefore, it requires not only sterilization, but also isolation. The isolation method generally adopts primary isolation and secondary isolation. One isolation is the isolation between the pathogen and the experimenter, and the purpose is to prevent the experimenter from being infected. Biological safety cabinets and hooded protective clothing are mainly used.

In order to prevent the leakage of pathogens from the laboratory to the external environment, the isolation of the laboratory from the outside is secondary isolation. The second isolation is the isolation between the laboratory and the outside world, and the purpose is to prevent people outside the laboratory from being infected.

The main ways of pollution transmission are the diffusion of aerosols and direct contact with pathogens. In particular, the former cannot be solved simply by improving the operation mode. Generally, two methods are used to establish a pressure difference between the isolation zone and the maintenance zone and sterilize the exhaust air.

P3 实验室)应维持压差(负压)一般为 -20 -50Pa ,使维持区到隔离区造成定向气流。 The isolation zone ( P3 laboratory) should maintain a differential pressure (negative pressure) of generally -20 to -50Pa , so that the directional airflow is caused from the maintenance zone to the isolation zone.

An airlock chamber is provided between the regions with different air pressures, and interlocking doors are arranged on both sides of the airlock chambers. When one side is opened, the other side is closed to maintain the pressure difference.

P3 实验室区域的室内压差等级从低到高依次是: P- Ⅱ生物安全柜 The indoor differential pressure levels of the entire P3 laboratory area are, from low to high, as follows: P- Ⅱ biological safety cabinet < 气闸室 < 更衣室 < 洁净准备室 < 走廊 Laboratory < Airlock Room < Changing Room < Clean Preparation Room < Corridor


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