I.S. EN 61266:1997
Current
The latest, up-to-date edition.
ULTRASONICS - HAND-HELD PROBE DOPPLER FOETAL HEARTBEAT DETECTORS - PERFORMANCE REQUIREMENTS AND METHODS OF MEASUREMENT AND REPORTING
Hardcopy , PDF
English
01-01-1997
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Definitions
4 List of symbols
5 Configuration
6 Performance
6.1 Acoustic working frequency
7 Safety
8 Tests
8.1 Acoustic working frequency
8.2 Output power
8.3 Spatial-peak temporal-peak acoustic pressure
8.4 Effective area of the ultrasonic transducer active element
8.5 Overall sensitivity
9 Preferred method for reporting performance of existing
equipment
10 Specifications for labelling
11 Sampling
Annexes
A (informative) Choice of target and determination of target
plane-wave reflection loss
B (informative) Typical test equipment and test procedures
C (informative) Determination of the two-way insertion loss of
acoustic attenuators
D (informative) Rationale
E (informative) Bibliography
ZA (normative) Normative references to international
publications with their corresponding
European publications
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