This Standard describes the criteria for application of turbine flowmeter with a rotating blade for measurement of liquid flows through closed conduit running full. The standard discusses the following: (a) considerations regarding the liquids to be measured; (b) turbine flowmeter system; (c) installation requirements; (d) design specifications; (e) the maintenance, operation, and performance; (f) measurement uncertainties; This Standard does not address the details of the installation of accessory equipment used to measure pressure, temperature, and/or density for the accurate determination of mass or base volumes, or those accessories used to automatically compute mass or base volumes.