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BSI BS 7965:2013

Guide to the selection, installation, operation and calibration of diagonal path transit time ultrasonic flowmeters for industrial gas applications
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BSI BS 7965:2013

Guide to the selection, installation, operation and calibration of diagonal path transit time ultrasonic flowmeters for industrial gas applications

PUBLISH DATE 2013
PAGES 74
BSI BS 7965:2013

This British Standard gives recommendations and guidance on the selection, installation, operation and calibration of transit time ultrasonic flowmeters (USMs) for industrial gas applications (including flare gas).

It is applicable only to those devices in which the entire gas stream flows through the body of the USM and the transducers (wetted or invasive type), or a wetted interface, are in contact with the fluid. This includes full-bore/reduced-bore and insertion type meters employing direct or reflective paths. It is also applicable to “dirty gases?, i.e. those contaminated with solids and/or liquids in sufficiently small quantities, depending upon the application.

It is not applicable to clamp-on/externally mounted, domestic or stack/chimney (combustion exhaust) meters.

As an aid to selection, this standard incorporates an uncertainty classification for USMs. This takes into account the components of uncertainty relating to the meter plus those additional uncertainties associated with installation and operation effects. There are four classifications offered. These range from high accuracy applications (Class 1) to process flow indication and control applications (Class 4).

SDO BSI: British Standards Institution
Document Number 7965
Publication Date Oct. 31, 2013
Language en - English
Page Count 74
Revision Level
Supercedes
Committee CPI/30/5
Publish Date Document Id Type View
Oct. 31, 2013 BS 7965:2013 Revision
Oct. 31, 2009 BS 7965:2009 Revision
April 15, 2000 BS 7965:2000 Revision