The most critical indicators of the annual verification of biological safety cabinets are as follows:
Biological safety cabinets are special equipment used to prevent the reproduction and spread of microorganisms such as viruses and bacteria. They are widely used in Medicine, biology, pharmaceuticals, environmental protection and other fields. To ensure the normal operation and use of biological safety cabinets, they need to be tested and evaluated regularly. The following is a detailed introduction to the testing standards for biological safety cabinets.
The testing standards for biological safety cabinets mainly include the following aspects:
1. Wind speed detection:
The air flow in the biological safety cabinet is to ensure that microorganisms cannot The key to diffusion, therefore wind speed detection is one of the important indicators for biological safety cabinet detection. The wind speed is usually between 0.5~0.6m/s, but the specific wind speed should be determined according to different models of biological safety cabinets. A special anemometer can be used for detection.
2. Activity detection:
While preventing the spread of bacteria or viruses, biological safety cabinets also need to ensure the safety of operators, so whether they can meet the needs of operators is also a test. important indicators. It mainly includes indicators such as movable area and comfort level.
3. Lamp tube and ultraviolet lamp detection:
Lamp tubes and ultraviolet lamps are commonly used lighting equipment in biological safety cabinets, and their lighting functions need to have sufficient brightness and radiation intensity. So that the operator can clearly see the details and operation process in the work area. The detection indicators of lamp tubes and ultraviolet lamps mainly include parameters such as whether the appearance is normal, whether the switch is flexible, and the irradiation distance.
4. Filter test:
The filter is a key component of the biological safety cabinet to filter foreign matter and microorganisms in the air. The service life of the filter is generally 6 to 12 months, so it needs to be replaced regularly. Indicators for detecting whether the filter is operating properly include filtration efficiency and sealing.
5. Noise detection:
Biological safety cabinets will produce noise during normal operation, but the noise should not exceed the acceptable range of human ears. Noise detection mainly includes measuring indicators such as equivalent sound level and sound power of noise.