National Bureau of Standards Gas Thermometer III. Constant Volume Valve
- 1 May 1965
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 36 (5) , 615-616
- https://doi.org/10.1063/1.1719646
Abstract
Special valves have been constructed to meet the constant volume requirements of a gas thermometry program. With a total volume inside the valve block less than 20 mm3, and that which is a part of the gas thermometer about 3 mm3, no change in excess of 0.005 mm3 is expected. This is achieved by extending the valve stem past the seat through a seal on the opposite side, so that the volume of stem pulled into the gas chamber is equal to the volume withdrawn when the valve is opened.This publication has 1 reference indexed in Scilit: