Vacuum glove box is widely used in gas purification industry. Although the present glove box design is more reasonable and easy to operate. However, the structure of the glove box is complex, there are many important parts, and the operation is a little improper, which may cause loss to your experimental results.

Next, I will introduce the preparations and precautions before operation:

  1. Check whether there is nitrogen in the nitrogen cylinder, replace the nitrogen in time, and set the output pressure of nitrogen to 0.5MPa.
  2. Check whether the vacuum pump starts normally.
  3. Check that the circulation in the glove box is open. (one of purge column-i or purge column-ii to be opened)
  4. Check that the upper pressure in the setting is + 1 and the lower pressure is 0
  5. Check whether oxygen and dew point are normal (oxygen below 0.1ppm, dew point above – 40)
  6. Over tank vacuum pump should be in the normally open state
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