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vacuum_ovens [2024/10/15 17:38] – mbatesvacuum_ovens [2024/10/16 19:18] (current) – mbates
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 1. Acquire Liquid Nitrogen: 1. Acquire Liquid Nitrogen:
-  * If there's liquid nitrogen (LN2) available in the dewar in E2 2120, you may use it, but please refill after use. If you’re coming from another lab, bring your own LN2.+  * If there's liquid nitrogen (LN2) available in the dewar that is shared between Elings 2411, 2417, and 2440, you may use it, but please refill after use.
  
 2. Inspect Vacuum Manifold: 2. Inspect Vacuum Manifold:
-  * Check the vacuum manifold for cracks. If any are found, report this finding to a BioPACIFIC MIP staff member, do not proceed to use the vacuum oven.+  * Check the vacuum manifold for cracks. If any are found, report this finding to a BioPACIFIC MIP staff member, and do not proceed to use the vacuum oven.
  
 3. Prepare the Vacuum Trap: 3. Prepare the Vacuum Trap:
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 4. Prepare the Vacuum Oven: 4. Prepare the Vacuum Oven:
-  * Ensure both purge and vacuum knobs are closed. Place samples inside the vacuum oven chamber, latch the door shut, and write your name, date, and time on the whiteboard.+  * Ensure both purge and vacuum knobs are closed. Place samples inside the vacuum oven chamber, latch the door shut, and write your name, date, and time in the logbook. Ensure that your reservation is also recorded in FBS.
  
 5. Start the Vacuum Pump: 5. Start the Vacuum Pump:
-  * Close all Teflon knobs on the vacuum splitter, then turn on the vacuum pump. Ensure the vacuum gauge reads <100 mTorr.+  * Close all Teflon knobs on the vacuum splitter, then turn on the vacuum pump. Ensure the vacuum gauge reaches <100 mTorr.
  
 6. Connect the Vacuum Pump to the Cold Trap: 6. Connect the Vacuum Pump to the Cold Trap:
-  * Open the Teflon knob on the vacuum splitter connecting the vacuum pump to the cold trap (0.5 to 1 rotation is sufficient). Ensure <100 mTorr is maintained on the gauge.+  * Open the Teflon knob on the vacuum splitter connecting the vacuum pump to the cold trap (0.5 to 1 rotation is sufficient). Ensure <100 mTorr is reached and maintained on the gauge.
  
 7. Set Up the Cold Trap: 7. Set Up the Cold Trap:
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 19. Handle Remaining Liquid Nitrogen: 19. Handle Remaining Liquid Nitrogen:
-  * Pour any remaining LN2 from the dewar back into the 10 L dewar.+  * Pour any remaining LN2 from the cold trap dewar back into the 10 L dewar.
  
 20. Clean the Cold Trap: 20. Clean the Cold Trap:
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 1. Place the cold trap back into the dewar and position a blast shield around the dewar.\\ 1. Place the cold trap back into the dewar and position a blast shield around the dewar.\\
 +
 2. Vent the system: 2. Vent the system:
   * Close the Teflon knob that connects the vacuum pump to the cold trap.   * Close the Teflon knob that connects the vacuum pump to the cold trap.
vacuum_ovens.1729013929.txt.gz · Last modified: 2024/10/15 17:38 by mbates