Tires: calibrating tyre pressure gauge, tyre pressure, pressure gauge

Question
-------------------------Is there a way to verify that pressure readings from  pressure gauges are accurate?Thanks again Barry
Followup To
Question -
can u inform as to practical ways of calibrating a tyre pressure gauge and possibly send visuals...

thanx

ben
Answer -
Unfortunately, calibrating tire pressure gauges is a complex and difficult process.

It's best to purchase another gauge if you have one that may be out of calibration.

Hope this helps.  

Answer
It's basically the same thing - difficult.

What I would suggest is find a bunch of people who have gauges and see which ones are different.  Chances are those are out of calibration.

Alternatively, buy a cheap pencil type gauge and use that for comparison.

Hope this helps.