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  • BS EN ISO 8311:2013

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    Refrigerated hydrocarbon and non-petroleum based liquefied gaseous fuels. Calibration of membrane tanks and independent prismatic tanks in ships. Manual and internal electro-optical distance-ranging methods

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  12-31-2013

    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
    4 Precautions
    5 Equipment
    6 Determination of measuring points
    7 Calibration by manual method
    8 Calibration by electro-optical
       distance-ranging (EODR) method
    9 Additional measurements
    10 Calculation
    11 Report and tables
    12 Recalibration
    Annex A (informative) - Uncertainty associated with
            tank calibration
    Annex B (informative) - Example of tank capacity
            table (Tank No.3)
    Annex C (informative) - Example of trim correction
            table (Tank No. 1)
    Annex D (informative) - Example of list correction
            table (Tank No. 1)
    Bibliography

    Abstract - (Show below) - (Hide below)

    Provides a method for the internal measurement of membrane tanks used in ships for the transport of refrigerated light hydrocarbon fluids.

    Scope - (Show below) - (Hide below)

    This International Standard specifies a method for the internal measurement of membrane tanks used in ships for the transport of refrigerated light hydrocarbon fluids. In addition to the actual process of measurement, it sets out the calculation procedures for compiling the tank capacity table and correction tables to be used for the computation of cargo quantities. This International Standard, with some modification, can also be applicable to the calibration of independent prismatic tanks.

    For the manual measurement of membrane tanks, the procedures of this International Standard utilize the scaffolding used for the installation of the membranes to support the measuring equipment but, for the internal electro-optical distance-ranging (EODR) method, other safe means of access to the required measuring positions are intended to be used.

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

    Committee PTI/12
    Development Note Renumbers and supersedes BS 7627(1993). 1996 version incorporates amendment 8897 to BS 7627(1993). Supersedes 85/54831 DC. (06/2005) Supersedes 12/30259914 DC. (01/2014)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    ISO 12917-2:2002 Petroleum and liquid petroleum products — Calibration of horizontal cylindrical tanks — Part 2: Internal electro-optical distance-ranging method
    ISO 4512:2000 Petroleum and liquid petroleum products Equipment for measurement of liquid levels in storage tanks Manual methods
    ISO 1998-6:2000 Petroleum industry — Terminology — Part 6: Measurement
    ISO 18132-1:2011 Refrigerated hydrocarbon and non-petroleum based liquefied gaseous fuels — General requirements for automatic tank gauges — Part 1: Automatic tank gauges for liquefied natural gas on board marine carriers and floating storage
    IEC 60825-1:2014 Safety of laser products - Part 1: Equipment classification and requirements
    ISO 7507-4:2010 Petroleum and liquid petroleum products Calibration of vertical cylindrical tanks Part 4: Internal electro-optical distance-ranging method
    IEC 60079-10-1:2015 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
    ISO 7507-1:2003 Petroleum and liquid petroleum products Calibration of vertical cylindrical tanks Part 1: Strapping method
    ISO 18132-3:2011 Refrigerated hydrocarbon and non-petroleum based liquefied gaseous fuels — General requirements for automatic tank gauges — Part 3: Automatic tank gauges for liquefied petroleum and chemical gases on board marine carriers and floating storage
    ISO 10976:2015 Refrigerated light hydrocarbon fluids — Measurement of cargoes on board LNG carriers
    ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
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