This standard BS EN 61685:2002 Ultrasonics. Flow measurement systems. Flow test object is classified in these ICS categories:
17.140.50 Electroacoustics
17.120.01 Measurement of fluid flow in general
Specifies parameters for a flow Doppler test object representing a blood vessel of known diameter at a certain depth in human tissue, carrying a steady flow. Establishes a flow Doppler test object which can be used to assess various aspects of the performance of Doppler diagnostic equipment.
