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BS ISO/TR 12765:1998

Current
Current

The latest, up-to-date edition.

Measurement of fluid flow in closed conduits. Methods using transit-time ultrasonic flowmeters
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-03-1999

Publisher

British Standards Institution

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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PDF - English
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