Abstract from paper by VSL, SP, IMS, NEL, and Justervesenet:
A Liquefied Natural Gas (LNG) flowmeter research and calibration facility is being built in Rotterdam by the Dutch metrology institute VSL. This cryogenic test loop will also be used to test and develop LNG analysers and new technologies and devices for measurement of LNG physical properties. The facility will consist of a Primary Standard Loop (PSL) that can measure the mass of LNG flows traceable to the International Kilogram standard in Paris. A second Midscale Standard Loop (MSL) will measure mass and volume flows of up to 200 m3/h, expandable to at least 400 m3/h in the future. This paper describes the combined PSL and MSL facility, its objectives, and accomplishments to date.