ISO 21903:2020
冷冻碳氢化合物液体 动态测量 液化天然气(LNG)和其他冷烃流体用流量计的校准和安装要求和指南
Refrigerated hydrocarbon fluids — Dynamic measurement — Requirements and guidelines for the calibration and installation of flowmeters used for liquefied natural gas (LNG) and other refrigerated hydro