Volume / Pressure Conversion

C'mon man, you can't be serious. It's called measurement uncertainty and you deal with it everyday. Not knowing the "exact" measurement of something is a fact of life. The fact that the allowance is so small is that much more of a reason to use calculations because there would be no real way to measure it.

We do both pressure test and vacuum test here, from light to heavy. Things that are associated with atmospheric pressure we calibrated them at that. As required per contracts, we spent millions on test equipments over the past 2 years. We just finished installed 4 air pressure tanks, 40 feet high x 12 feet in diameter ea (max 600psi) on 6 feet thick concrete...

The way we callout is a bit different; we have close to 50 different type of valves, with different type of seats, different requirements. Leakage allowance depends on the function of each valve, some constant, some are average on x amount of time, some are not and should not exceed the max allowance at any point during the test cycle. All that saying is that we cover wide range of pressure test, I am not sure if we have the proper equipment to check what the OP asks, but I’m very certain that there is something out there will do just that. Based on the max given value, I have to think that whatever he’s testing is critical, it should not be taken lightly.

C'mon man, you can't be serious. It's called measurement uncertainty and you deal with it everyday. Not knowing the "exact" measurement of something is a fact of life. The fact that the allowance is so small is that much more of a reason to use calculations because there would be no real way to measure it.

We do both pressure test and vacuum test here, from light to heavy. Things that are associated with atmospheric pressure we calibrated them at that. As required per contracts, we spent millions on test equipments over the past 2 years. We just finished installed 4 air pressure tanks, 40 feet high x 12 feet in diameter ea (max 600psi) on 6 feet thick concrete...

The way we callout is a bit different; we have close to 50 different type of valves, with different type of seats, different requirements. Leakage allowance depends on the function of each valve, some constant, some are average on x amount of time, some are not and should not exceed the max allowance at any point during the test cycle. All that saying is that we cover wide range of pressure test, I am not sure if we have the proper equipment to check what the OP asks, but I’m very certain that there is something out there will do just that. Based on the max given value, I have to think that whatever he’s testing is critical, it should not be taken lightly.