Standard operating procedure of vacuum drying oven Standard operating procedure of vacuum drying oven: 1. Put the sample you need to vacuum dry in a Petri dish, covered with paper, tied with rubber band, and then poke some small holes. 2. Put the sample into the vacuum oven, close the inner door and the outer door, make sure to close the air release valve tightly, open the vacuum valve, and then use the vacuum pump to pump air 3 (see your vacuum requirements to choose whether to use water pump or oil pump). When the pressure is low enough, first turn off the vacuum valve and then turn off the power of the vacuum pump, otherwise it will cause back suction. 4. After you start pumping, you can turn on the electric power supply of the oven and set the temperature you need. 5. It should be noted that the vacuum degree may decrease after working in the vacuum oven for a period of time. If you need to dry for a long time, it is recommended to check the vacuum once for 1 to 2 hours. If it is not enough, then perform the pumping operation. 6. After use, turn off the electric heating power of the oven, open the air release valve, and then open the door to take out the sample when the pressure is consistent with the outside world.
Kids Bookshelf,Ladder Bookshelf,White Bookcase,White Bookshelf
BOSA FURNITURE CO.,LTD. , https://www.bosafurniture.com