• BS ISO 14511:2001

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Measurement of fluid flow in closed conduits. Thermal mass flowmeters

    Available format(s):  Hardcopy, PDF

    Superseded date:  23-01-2019

    Language(s):  English

    Published date:  15-01-2002

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
       3.1 General terms
       3.2 Specific terms
    4 Selection of thermal mass flowmeters
    5 Capillary thermal mass flowmeters (CTMF meter)
       5.1 Principles of measurement
       5.2 Typical design
       5.3 Application and limitations of use
       5.4 Meter selection
       5.5 Installation and commissioning
    6 Insertion and/or in-line thermal mass flowmeter (ITMF meter)
       6.1 Principles of measurement
       6.2 Typical design
       6.3 Applications and limitations of use
       6.4 Meter selection
       6.5 Installation and commissioning
    7 Instrument specification sheet and marking
       7.1 User specification sheet
       7.2 Manufacturer's data sheet
       7.3 Marking
    8 Calibration
       8.1 General considerations
       8.2 Use of the desired gas under process conditions
       8.3 Use of a surrogate gas
       8.4 In-situ calibration
       8.5 Insertion-ITMF meter
       8.6 Calibration frequency
       8.7 Calibration certificate
    9 Pre-installation inspection and testing
    10 Maintenance
       10.1 General
       10.2 Visual inspection
       10.3 Functional test
       10.4 Record keeping (maintenance audit trail)
    Bibliography

    Abstract - (Show below) - (Hide below)

    Provides guidelines for the specification, testing, inspection, installation, operation and calibration of thermal mass gas flowmeters for the metering of gases and gas mixtures.

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

    Committee CPI/30/5
    Development Note Supersedes 98/121135 DC (02/2002)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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

    IEC 60381-1:1982 Analogue signals for process control systems. Part 1: Direct current signals
    ISO 7066-2:1988 Assessment of uncertainty in the calibration and use of flow measurement devices — Part 2: Non-linear calibration relationships
    ISO 5168:2005 Measurement of fluid flow — Procedures for the evaluation of uncertainties
    ISO 3534-2:2006 Statistics Vocabulary and symbols Part 2: Applied statistics
    IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
    ISO 3534-3:2013 Statistics — Vocabulary and symbols — Part 3: Design of experiments
    IEC 60359:2001 Electrical and electronic measurement equipment - Expression of performance
    IEC 60381-2:1978 Analogue signals for process control systems. Part 2: Direct voltage signals
    ISO 4006:1991 Measurement of fluid flow in closed conduits — Vocabulary and symbols
    ISO 3534-1:2006 Statistics — Vocabulary and symbols — Part 1: General statistical terms and terms used in probability
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