Laboratory decoration to explain the secondary biosafety (P2) laboratory
1. Laboratory biosafety technical measures
1 Sample isolation technology (mechanical, air curtain) prevents infectious agents from entering the environment and contacting the human body
2 Directional flow technology (three-stage air pressure system) to prevent the spread of infectious agents.
3 Disinfection and sterilization technology (physical, chemical), inactivate infectious biological factors.
2. Biosafety laboratory grading
Laboratory grading
Level 1 Low individual hazard, low group damage. It is harmful to the human body, animals, plants or the environment. It does not have the recognition of lectures, the therapeutic factors of animal and plant diseases;
Secondary Medium Individual Hazard, Limited Group Hazard A moderately hazardous or potentially dangerous causative agent for humans, animals, plants or the environment that does not pose a serious hazard to healthy adults, animals and the environment. Limited preventive and therapeutic measures;
Class III higher individual hazards, low group hazards are highly dangerous to humans, animals, plants or the environment, mainly through aerosols causing serious or even fatal diseases, or highly harmful therapeutic factors for animals, plants and the environment. , usually with preventive and therapeutic measures;
Level 4 High individual hazard, high group hazard High risk to humans, animals, plants or the environment, mainly through the aerosol route or unknown route, or unknown, dangerous pathogenic factors. No preventive and therapeutic measures;
The biological hazard is indicated at the entrance of the second to fourth level biosafety laboratory. The name of the pathogen accepted by the operation, the hazard level, the name of the person responsible for the preventive measures, and the emergency contact method should be clearly identified. At the same time, an internationally accepted biohazard signal should be indicated.
Biosafety laboratory layout requirements
1. Safety principle: The professional laboratory with strong sexuality and high infection is isolated from the office area, and it is a relatively independent area. The pathogenic microbiology laboratory is set as far as possible in the area where the flow of people is small (the new best independent setting)
2, the flow of the laboratory: there are safe and low-toxicity laboratories like high-intensity infectious laboratory, high-infectious laboratories should be away from the frequent activities of people, located at the end of the building
3. The flow channels of the flow of people are separated as much as possible. The entrance and exit channels of the personnel are separated from the passages of the items, and the clean items are separated from the channels of the contaminated items.
4, different categories and professional laboratories should be set up independently, reasonable partition layout.
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