Patent ID: 11874155
Assignee: MICROMERITICS INSTRUMENT CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The method of claim 4, wherein determining the measured volume of the custom volume reference standard further comprises:
(a) supplying the gas to sample chamber;
(b) after the sample chamber is filled with the gas, measuring the first pressure of the gas within the sample chamber;
(c) after a pressure and temperature within the sample chamber reach equilibrium, opening a valve to allow the gas to flow from the sample chamber to an expansion chamber;
(d) after the expansion chamber is filled with the gas, measuring the second pressure of the gas within the sample chamber; and
(e) determining the measured volume of the custom volume reference standard based on the first pressure, second pressure, and the known volume of the sample chamber.