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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
    Edition: 2013
    $569.57
    / user per year

Description of BS 7965:2013 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).



Standard NumberBS 7965:2013
TitleGuide to the selection, installation, operation and calibration of diagonal path transit time ultrasonic flowmeters for industrial gas applications
StatusConfirmed
Publication Date2013-10-31
ReplacesBS 7965:2009
DescriptorsTransducers, Calibration, Selection, Transit-time devices, Verification, Industrial, Flow measurement, Ultrasonic devices, Installation, Gases, Gas flow, Environment (working), Formulae (mathematics), Measurement characteristics, Flowmeters, Error correction, Performance, Flow rates
ICS17.120.10 Flow in closed conduits
CommitteeCPI/30/5
ISBN978 0 580 80061 0
PublisherBSI
Pages74

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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