How Powerful A Vacuum Do I Need To Reduce Pressure To 1 Torr In A 6″ Cube?

I have a sealed 6″ cube (air, not liquid) and I need to reduce pressure to 1 Torr. Does anyone have suggestions for specific vacuum pumps or recommendations on where I can find this info? Thanks.

One Response to “How Powerful A Vacuum Do I Need To Reduce Pressure To 1 Torr In A 6″ Cube?”

  • billruss:

    Vacuum pumps are rated in microns, which seems to be a strange system of units. From what I can find, Atmospheric pressure measures around 759,968 microns. Since 1 atm = 760 torr, that means
    1 torr = 1000 microns.
    Most pumps I could find are in the 100 micron range, which is 0.1 torr, so any would do for your application. Size is not a concern, as you have a fixed volume, and no time limitation.
    the reference has one of hundreds.