EN 61685:2001

Introduction
1 Scope
2 Normative references
3 Definitions
4 List of symbols
5 General outline of flow Doppler test object
6 Specification of the flow Doppler test object
   6.1 General
   6.2 Blood-mimicking fluid (BMF)
   6.3 Tube
   6.4 Tissue-mimicking material (TMM)
   6.5 Geometry
7 Precautions to prevent changes in the composition
   of the blood-mimicking fluid (BMF)
8 Specifications for labelling
Annex A (informative) Rationale concerning the position
        of this standard
Annex B (normative) Formulae relating various quantities
Annex C (informative) Rationale for the numerical values
        chosen in this standard
Annex D (informative) Description of an example flow
        Doppler test object
Annex E (informative) Schematic diagram of a possible
        flow circuit
Annex F (informative) Measuring methods
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Bibliography
Figures
Tables

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.