how is vacuum measured?

deathlucky

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 :)

Nanoath

wouldn't it be just Pressure/2 ?

jtbell

See the Wikipedia articles on the Torr (a.k.a. "mm Hg") and the barometer (paying particular attention to the "mercury barometer."

super6logan

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

andy taylor

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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deathlucky	how is vacuum measured? Tweet 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 :)

jtbell Mentor	See the Wikipedia articles on the Torr (a.k.a. "mm Hg") and the barometer (paying particular attention to the "mercury barometer."

super6logan	how is vacuum measured? 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

andy taylor Blog Entries: 1	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.