Answer / pabitra choudhury

Same as the units you use for measurment of Pressure .
Absolute vaccum is zero pressure .
Vaccum meance the pressure is below atmospheric pressure.

Answer / palash

torr

Answer / virendra ku mallah

mm hg & mm hg
There Hg is mecuiry

Answer / banamali mohanta

mmHg or inchHg

Answer / manish

Torr

Answer / thiyagrajan

hg



In scientific parlance, 1 atmosphere is equivalent to 760
torr (1 torr is equivalent to 1 millimeter of mercury whose
symbol is Hg).

Answer / sai kumar

torr

Answer / rajesh yadav

Unit of vaccum are as follows

-760 mmwc to 0 mmwc
mmHG
-1 to 0 kgf/cm2
torr
kpa
many more as per requirement of unit

Answer / lalit gurjar

mm hg (milimeter mecury )

Answer / devraj

Hg/cm2

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