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
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English, French
07-10-2008
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.
| DevelopmentNote |
Supersedes ISO/DIS 7194. (07/2008)
|
| DocumentType |
Standard
|
| Pages |
27
|
| PublisherName |
International Organization for Standardization
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| Status |
Current
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| Supersedes |
| Standards | Relationship |
| BS ISO 7194:2008 | Identical |
| NF ISO 7194 : 1993 | Identical |
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| 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 |
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| 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 |
| 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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