- #1
deathlucky
- 10
- 1
im just wondering to work out vacuum in in.hg say if i have 3 1 letter bottles they have vacuums of 10 in.hg 20 in.hg 30 in.hg how much air will be in the bottles
cheers
cheers
To convert vacuum from PSI to in.Hg, you can use the following formula: vacuum in in.Hg = (PSI / 14.7) x 30. The first step is to divide the PSI value by 14.7, which is the standard atmospheric pressure. Then, multiply the result by 30 to get the equivalent vacuum value in in.Hg.
In.Hg stands for inches of mercury, which is a unit of measurement commonly used in vacuum systems. It represents the height of a mercury column in a barometer at a particular pressure. In.Hg is often used to measure the level of vacuum in a system, with a higher value indicating a stronger vacuum.
To measure vacuum in in.Hg using a vacuum gauge, you first need to connect the gauge to the vacuum system. Make sure that the gauge is properly calibrated and that the scale is set to in.Hg. Then, observe the reading on the gauge, which will indicate the level of vacuum in the system in in.Hg.
Absolute vacuum in in.Hg is measured relative to a perfect vacuum, which is considered to have an absolute pressure of 0 in.Hg. On the other hand, gauge vacuum in in.Hg is measured relative to atmospheric pressure, which is typically 29.92 in.Hg. This means that absolute vacuum can have negative values, while gauge vacuum will always be a positive value.
Temperature can affect vacuum measurements in in.Hg because it can impact the pressure of the gas or vapor being measured. As temperature increases, the molecules in the gas or vapor will have more energy and will exert more pressure, resulting in a higher vacuum reading in in.Hg. Therefore, it is important to consider and control for temperature when measuring vacuum in in.Hg.