DIN EN 61685 (2003-02)现行
Ultrasonics - Flow Measurement Systems - Flow Test Object
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
Defines 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.
SN EN 61685:2001 - Identical
BS EN 61685:2002 - Identical
NF EN 61685:2006 - Identical
NBN EN 61685:2002 - Identical
IEC 61685 Ed. 1.0 - Identical
I.S. EN 61685:2001 - Identical
SS EN 61685 Ed. 1 (2002) - Identical
