As a commonly used clean equipment in laboratories, the main function of a clean workbench is to provide a clean working environment to ensure the accuracy and reliability of experimental results. Do you know how many cleanliness levels there are for a clean workbench? Let's introduce it below:

　　1. A-level clean workbench

　　The cleanliness requirements for this type of clean workbench are very high, generally reaching ISO level 3 and microbiological cleanliness reaching ISO level 5. Vertical flow crystallization technology is generally used, which blows clean air from the top downwards to ensure the cleanliness of the work area.

　　2. B-level clean workbench

　　This type of clean workbench has lower requirements for crystallization compared to Class A, generally requiring air cleanliness to reach ISO level 5 and microbiological cleanliness to reach ISO level 7. Horizontal flow cleaning technology is generally used, which blows clean air from the rear to the front to ensure the cleanliness of the work area.

　　3. C-level crystallization workbench

　　This type of clean workbench has the lowest requirements, generally requiring air cleanliness to reach ISO level 7 and microbiological cleanliness to reach ISO level 8. Horizontal flow cleaning technology is generally used.

　　Have you understood all three levels of cleanliness for a clean workbench? If you want to learn more about the content, you can visit Haisiyuan's official website www.hsy515.cn!

Next:What are the precautions for liquid nitrogen tanks?

Previous:Application of Freezing Storage Rack in Liquid Nitrogen Tanks