How is vacuum measured?

  • Thread starter deathlucky
  • Start date
  • #1
10
1
just wondering how vacuum is measured in Hg say is i had a 1L bottle and was to suck half the air out how much Hg would that be?

cheers :)
 

Answers and Replies

  • #2
8
0
wouldn't it be just Pressure/2 ?
 
  • #3
jtbell
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See the Wikipedia articles on the Torr (a.k.a. "mm Hg") and the barometer (paying particular attention to the "mercury barometer."
 
  • #4
Pressure is measured in Atmospheres or Torres. At sea level on Earth you should experience 1 Atmosphere. An Atmosphere is 760 torres so you cut that in half and you'd have a .5 Atmospheres or 380 torres
 
  • #5
HI to measure vacuum in hg..that inches of mercury ..thats an old method using a mercury manometer. the simplest andswer is half atmosheric pressure 1000mbar divided by two.
 
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