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  • ISO 20456:2017

    Current The latest, up-to-date edition.

    Measurement of fluid flow in closed conduits — Guidance for the use of electromagnetic flowmeters for conductive liquids

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

    Language(s):  French, English

    Published date:  15-09-2017

    Publisher:  International Organization for Standardization

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    Abstract - (Show below) - (Hide below)

    ISO 20456:2017 applies to industrial electromagnetic flowmeters used for the measurement of flowrate of a conductive liquid in a closed conduit running full. It covers flowmeter types utilizing both alternating current (AC) and pulsed direct current (DC) circuits to drive the field coils and meters running from a mains power supply and those operating from batteries or other sources of power.

    ISO 20456:2017 is not applicable to insertion-type flowmeters or electromagnetic flowmeters designed to work in open channels or pipes running partially full, nor does it apply to the measurement of magnetically permeable slurries or liquid metal applications.

    ISO 20456:2017 does not specify safety requirements in relation to hazardous environmental usage of the flowmeter.

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

    Development Note Supersedes ISO 6817, ISO 9104, ISO 13359 and ISO/DIS 20456. (09/2017)
    Document Type Standard
    Publisher International Organization for Standardization
    Status Current
    Supersedes

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

    OIML R 49-3 : 2013 WATER METERS FOR COLD POTABLE WATER AND HOT WATER - PART 3: TEST REPORT FORMAT
    OIML R 117-2 : 2014 DYNAMIC MEASURING SYSTEMS FOR LIQUIDS OTHER THAN WATER - PART 2: METROLOGICAL CONTROLS AND PERFORMANCE TESTS
    OIML R 75-3 : 2006 HEAT METERS - PART 3: TEST REPORT FORMAT
    IEC 60381-1:1982 Analogue signals for process control systems. Part 1: Direct current signals
    EN 14154-1:2005+A2:2011 Water meters - Part 1: General requirements
    IEC 60068-2-27:2008 Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock
    ISO 5168:2005 Measurement of fluid flow — Procedures for the evaluation of uncertainties
    ISO 4064-4:2014 Water meters for cold potable water and hot water — Part 4: Non-metrological requirements not covered in ISO 4064-1
    ISO/IEC Guide 98-1:2009 Uncertainty of measurement — Part 1: Introduction to the expression of uncertainty in measurement
    ISO 7066-1:1989 Assessment of uncertainty in the calibration and use of flow measurement devices Part 1: Linear calibration relationships
    ISO 4064-5:2014 Water meters for cold potable water and hot water — Part 5: Installation requirements
    ISO 4064-3:2014 Water meters for cold potable water and hot water — Part 3: Test report format
    ISO 4064-2:2014 Water meters for cold potable water and hot water Part 2: Test methods
    IEC 60068-2-67:1995 Environmental testing - Part 2-67: Tests - Test Cy: Damp heat, steady state, accelerated test primarily intended for components
    ISO/IEC Guide 99:2007 International vocabulary of metrology Basic and general concepts and associated terms (VIM)
    OIML R 75-1 : 2002 HEAT METERS - PART 1: GENERAL REQUIREMENTS
    EN 14154-3:2005+A2:2011 Water meters - Part 3: Test methods and equipment
    ISO 8316:1987 Measurement of liquid flow in closed conduits Method by collection of the liquid in a volumetric tank
    IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
    EN 14154-2:2005+A2:2011 Water meters - Part 2: Installation and conditions of use
    OIML R 49-1 : 2013 WATER METERS FOR COLD POTABLE WATER AND HOT WATER - PART 1: METROLOGICAL AND TECHNICAL REQUIREMENTS
    OIML R 49-2 : 2013 WATER METERS FOR COLD POTABLE WATER AND HOT WATER - PART 2: TEST METHODS
    IEC 60359:2001 Electrical and electronic measurement equipment - Expression of performance
    OIML R 117-3 : 2014 DYNAMIC MEASURING SYSTEMS FOR LIQUIDS OTHER THAN WATER - PART 3: TEST REPORT FORMAT
    ISO 7194:2008 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
    ISO 7005-1:2011 Pipe flanges — Part 1: Steel flanges for industrial and general service piping systems
    IEC 60381-2:1978 Analogue signals for process control systems. Part 2: Direct voltage signals
    ISO 6316:2012 Hot-rolled steel strip of structural quality
    ISO 4064-1:2014 Water meters for cold potable water and hot water Part 1: Metrological and technical requirements
    ISO 4006:1991 Measurement of fluid flow in closed conduits — Vocabulary and symbols
    OIML R 117-1 : 2007 DYNAMIC MEASURING SYSTEMS FOR LIQUIDS OTHER THAN WATER - PART 1: METROLOGICAL AND TECHNICAL REQUIREMENTS
    ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
    OIML R 75-2 : 2002 HEAT METERS - PART 2: TYPE APPROVAL TESTS AND INITIAL VERIFICATION TESTS
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