This standard describes the principles and main design of ultrasonic flow meters that measure the volumetric flow rate of a fluid by the difference in propagation time.
KS B ISO TR 12765:2005 history
2020KS B ISO TR 12765-2020 Measurement of fluid flow in closed conduits-Methods using transit-time ultrasonic flowmeters
2005KS B ISO TR 12765:2005 Measurement of fluid flow in closed conduits-Methods using transit-time ultrasonic flowmeters