NIST/CEESI Liquid Nitorgen Facility

The topic of this paper is a liquid nitrogen flow calibration facility owned by NIST and operated by CEESI. The paper begins with a description of the components and operating procedures including recent improvements as well as future plans. The discussion continues with a summary of the uncertainty component. A detailed review identified key components that require additional data and analysis; several test programs under consideration are described. The paper concludes with a discussion of past and potential future applications. While the turbine meter represents the typical meter under calibration, the newer Coriolis technology is advancing in the market. The traditional client industries continue to be aerospace and gas processing with new calibration opportunities resulting from the rapid growth of LNG (liquefied natural gas) transportation and fuel.