BS ISO/TR 12765:1998
Current
The latest, up-to-date edition.
Measurement of fluid flow in closed conduits. Methods using transit-time ultrasonic flowmeters
Hardcopy , PDF
English
15-03-1999
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1 Scope
2 Normative references
3 Definitions
4 Symbols and subscripts
5 General principles of measurements
5.1 Generation of ultrasonic signals
5.2 Transit-time method
5.3 Calculation of volume flowrate, qv
6 Types of design
6.1 Ultrasonic transducer
6.2 Control unit
7 Uncertainty of measurement
7.1 Calculation procedure
7.2 Influence factors
8 Calibration
8.1 Dry calibration
8.2 Flow calibration
Annex A (informative) Calculation of volume flowrate by
transit-time measurement using pulse techniques
Annex B (informative) Recommendations for use and installations
Annex C (informative) Information to be supplied by the manufacturer
Bibliography
Guidance on the principles and main design features of transit time ultrasonic flowmeters.
| Committee |
CPI/30/5
|
| DevelopmentNote |
Supersedes 96/206627 DC. (08/2005)
|
| DocumentType |
Standard
|
| Pages |
50
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| ISO/TR 12765:1998 | Identical |
| BS 7965:2000 | The selection, installation, operation and calibration of diagonal path transit time ultrasonic flowmeters for industrial gas applications |
| BS 7965:2013 | Guide to the selection, installation, operation and calibration of diagonal path transit time ultrasonic flowmeters for industrial gas applications |
| BS 7965:2009 | Guide to the selection, installation, operation and calibration of diagonal path transit time ultrasonic flowmeters for industrial gas applications |
| 13/30268440 DC : 0 | BS 7965 - GUIDE TO THE SELECTION, INSTALLATION, OPERATION AND CALIBRATION OF DIAGONAL PATH TRANSIT TIME ULTRASONIC FLOWMETERS FOR INDUSTRIAL GAS APPLICATIONS |
| ISO 9300:2005 | Measurement of gas flow by means of critical flow Venturi nozzles |
| ISO 8316:1987 | Measurement of liquid flow in closed conduits — Method by collection of the liquid in a volumetric tank |
| ISO 4006:1991 | Measurement of fluid flow in closed conduits — Vocabulary and symbols |
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