Standardization of rules and methods for the measurement of fluid flow in closed conduits including:* terminology and definitions; * rules for inspection, installation, operation; * construction of instruments and equipment required; * conditions under which measurements are to be made; *rules for collection, evaluation and interpretation of measurement data, including errors.  

ASME will be relinquishing the US Tag to ISO TC 30 SC 5 on Velocity Based Methods effective December 31, 2020