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  • ISO 7194:2008

    Current The latest, up-to-date edition.

    Measurement of fluid flow in closed conduits — Velocity-area methods of flow measurement in swirling or asymmetric flow conditions in circular ducts by means of current-meters or Pitot static tubes

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English, French

    Published date:  10-07-2008

    Publisher:  International Organization for Standardization

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    Abstract - (Show below) - (Hide below)

    ISO 7194:2008 specifies velocity-area methods for measuring flow in swirling or asymmetric flow conditions in circular ducts by means of current-meters of Pitot static tubes.

    ISO 7194:2008 specifies the measurements required, the precautions to be taken, the corrections to apply, and describes the additional uncertainties which are introduced when a measurement in asymmetric or swirling flow has to be made.

    Only flows with a negligible radial component are considered, however. Furthermore, it is not possible to make a measurement in accordance with ISO 7194:2008 if, at any point in the measuring cross-section, the local velocity makes an angle of greater than 40° with the axis of the duct, or where the index of asymmetry Y (defined within ISO 7194:2008) is greater than 0,15.

    ISO 7194:2008 deals only with instruments for measuring local velocity as defined in ISO 3354 and ISO 3966. If Pitot static tubes are used, ISO 7194:2008 applies only to flows where the Mach number corresponding to local velocities does not exceed 0,25.

    General Product Information - (Show below) - (Hide below)

    Development Note Supersedes ISO/DIS 7194. (07/2008)
    Document Type Standard
    Publisher International Organization for Standardization
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    DIN EN ISO 5802:2016-02 INDUSTRIAL FANS - PERFORMANCE TESTING IN SITU (ISO 5802:2001 + AMD 1:2015)
    08/30165047 DC : DRAFT JUNE 2008 BS EN ISO 9906 - ROTODYNAMIC PUMPS - HYDRAULIC PERFORMANCE ACCEPTANCE TESTS
    ISO 16494:2014 Heat recovery ventilators and energy recovery ventilators Method of test for performance
    CTI STD 146 : 0 STANDARD FOR LIQUID FLOW MEASUREMENT
    DIN EN ISO 9906 E : 2013 ROTODYNAMIC PUMPS - HYDRAULIC PERFORMANCE ACCEPTANCE TESTS - GRADES 1, 2 AND 3 (ISO 9906:2012)
    EN 1267:2012 Industrial valves - Test of flow resistance using water as test fluid
    BS ISO 3966:2008 Measurement of fluid flow in closed conduits. Velocity area method using Pitot static tubes
    S.R. CEN/TR 13932:2009 ROTODYNAMIC PUMPS - RECOMMENDATIONS FOR FITTING OF INLET AND OUTLET ON PIPING
    CEN/TR 13932:2009 Rotodynamic pumps - Recommendations for fitting of inlet and outlet on piping
    BS EN ISO 5802 : 2008 INDUSTRIAL FANS - PERFORMANCE TESTING IN SITU
    S.R. CEN/TR 12101-4:2009 SMOKE AND HEAT CONTROL SYSTEMS - PART 4: INSTALLED SHEVS SYSTEMS FOR SMOKE AND HEAT VENTILATION
    I.S. EN 1267:2012 INDUSTRIAL VALVES - TEST OF FLOW RESISTANCE USING WATER AS TEST FLUID
    I.S. EN ISO 9906:2012 ROTODYNAMIC PUMPS - HYDRAULIC PERFORMANCE ACCEPTANCE TESTS - GRADES 1, 2 AND 3 (ISO 9906:2012)
    ISO 11520-1:1997 Agricultural grain driers Determination of drying performance Part 1: General
    ISO 3966:2008 Measurement of fluid flow in closed conduits Velocity area method using Pitot static tubes
    UNI CEN/TR 13932 : 2009 ROTODYNAMIC PUMPS - RECOMMENDATIONS FOR FITTING OF INLET AND OUTLET ON PIPING
    BS ISO 16494:2014 Heat recovery ventilators and energy recovery ventilators. Method of test for performance
    PD CEN/TR 13932:2009 Rotodynamic pumps. Recommendations for fitting of inlet and outlet on piping
    BS 848-3(2001) : 2001 FANS FOR GENERAL PURPOSE - PART 3: PERFORMANCE TESTING IN SITU
    ISO 3354:2008 Measurement of clean water flow in closed conduits — Velocity-area method using current-meters in full conduits and under regular flow conditions
    API 551 : 2016 PROCESS MEASUREMENT
    DIN EN ISO 6817:1995-11 MEASUREMENT OF CONDUCTIVE LIQUID FLOW IN CLOSED CONDUITS; METHODS USING ELECTROMAGNETIC FLOW-METERS
    ISO 5802:2001 Industrial fans — Performance testing in situ
    UNE-EN 1267:2012 Industrial valves - Test of flow resistance using water as test fluid
    BS EN ISO 9906:2012 Rotodynamic pumps. Hydraulic performance acceptance tests. Grades 1, 2 and 3
    DIN EN ISO 9906:2013-03 ROTODYNAMIC PUMPS - HYDRAULIC PERFORMANCE ACCEPTANCE TESTS - GRADES 1, 2 AND 3 (ISO 9906:2012)
    I.S. EN ISO 6817:1996 MEASUREMENT OF CONDUCTIVE LIQUID FLOW IN CLOSED CIRCUITS - METHODS USING ELECTROMAGNETIC FLOWMETERS
    UNI EN 1267 : 2012 INDUSTRIAL VALVES - TEST OF FLOW RESISTANCE USING WATER AS TEST FLUID
    UNI EN ISO 9906 : 2012 ROTODYNAMIC PUMPS - HYDRAULIC PERFORMANCE ACCEPTANCE TESTS - GRADES 1, 2 AND 3
    BS ISO 3354:2008 Measurement of clean water flow in closed conduits. Velocity-area method using current-meters in full conduits and under regular flow conditions
    HI 14.6 : 2016 ROTODYNAMIC PUMPS FOR HYDRAULIC PERFORMANCE ACCEPTANCE TESTS
    FD CEN/TR 13932 : 2009 FD ROTODYNAMIC PUMPS - RECOMMENDATIONS FOR FITTING OF INLET AND OUTLET ON PIPING
    CEN/TR 12101-4:2009 Smoke and heat control systems - Part 4: Installed SHEVS systems for smoke and heat ventilation
    12/30255198 DC : 0 BS ISO 16494 - HEAT RECOVERY VENTILATORS AND ENERGY RECOVERY VENTILATORS - METHOD OF TEST FOR PERFORMANCE
    SAE J 1792/2 : 2015 SELF-PROPELLED SWEEPERS - AIR FLOW PERFORMANCE - PART 2: SUCTION/BLOWER FAN PERFORMANCE
    ISO 20456:2017 Measurement of fluid flow in closed conduits — Guidance for the use of electromagnetic flowmeters for conductive liquids
    DIN EN 1267:2012-04 Industrial valves - Test of flow resistance using water as test fluid
    I.S. CEN TR 12101-4:2006 SMOKE AND HEAT CONTROL SYSTEMS - PART 4: INSTALLED SHEVS SYSTEMS FOR SMOKE AND HEAT VENTILATION
    ISO 9906:2012 Rotodynamic pumps — Hydraulic performance acceptance tests — Grades 1, 2 and 3
    ISO 5198:1987 Centrifugal, mixed flow and axial pumps Code for hydraulic performance tests Precision grade
    BS EN ISO 5198:1999 Centrifugal, mixed flow and axial pumps. Code for hydraulic performance tests. Precision class
    EN ISO 6817:1995 Measurement of conductive liquid flow in closed conduits - Methods using electromagnetic flow-meters (ISO 6817:1992)
    EN ISO 5198:1998 CENTRIFUGAL, MIXED FLOW AND AXIAL PUMPS - CODE FOR HYDRAULIC PERFORMANCE TESTS - PRECISION CLASS
    EN ISO 9906:2012 Rotodynamic pumps - Hydraulic performance acceptance tests - Grades 1, 2 and 3 (ISO 9906:2012)
    EN ISO 5802:2008/A1:2015 INDUSTRIAL FANS - PERFORMANCE TESTING IN SITU (ISO 5802:2001/AMD 1:2015)
    09/30202711 DC : 0 BS EN 1267 - INDUSTRIAL VALVES - TEST OF FLOW RESISTANCE USING WATER AS TEST FLUID
    ISO 14955-2:2018 Machine tools — Environmental evaluation of machine tools — Part 2: Methods for measuring energy supplied to machine tools and machine tool components
    I.S. EN ISO 5802:2008 INDUSTRIAL FANS - PERFORMANCE TESTING IN SITU (ISO 5802:2001)
    ISO 6817:1992 Measurement of conductive liquid flow in closed conduits Method using electromagnetic flowmeters
    BS EN 1267:2012 Industrial valves. Test of flow resistance using water as test fluid

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 5168:2005 Measurement of fluid flow — Procedures for the evaluation of uncertainties
    ISO 3354:2008 Measurement of clean water flow in closed conduits — Velocity-area method using current-meters in full conduits and under regular flow conditions
    ISO/TR 3313:1998 Measurement of fluid flow in closed conduits Guidelines on the effects of flow pulsations on flow-measurement instruments
    ISO 3966:2008 Measurement of fluid flow in closed conduits Velocity area method using Pitot static tubes
    ISO 3455:2007 Hydrometry Calibration of current-meters in straight open tanks
    ISO 4006:1991 Measurement of fluid flow in closed conduits — Vocabulary and symbols
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