Volumetric calibration of experimental apparatus by xenon gas transfer

The volumes of interconnected sections of large, irregular, or inaccessible apparatus can be measured by quantitative cryogenic transfer of a xenon gas fill to weighing bottles. Tests with eight containers from 75 to 10 000 cm3 using relatively simple equipment, showed that: (1) absolute volumes of 250 cm3 or larger can be measured with a reproducibility on the order of 0.02% and with an accuracy on the order of 0.05% and (2) the ratios among two or more volumes can be determined with a reproducibility of 0.01%--0.001%, depending on volume