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  • BS ISO 17315:2014

    Current The latest, up-to-date edition.

    Petroleum products and other liquids. Ethanol. Determination of total acidity by potentiometric titration

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    Published date:  31-10-2014

    Publisher:  British Standards Institution

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

    Foreword
    Introduction
    1 Scope
    2 Terms and definitions
    3 Reagents and materials
    4 Apparatus
    5 Apparatus calibration
    6 Procedure
    7 Calculation
    8 Expression of results
    9 Precision
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes a test method for the determination of total acidity of ethanol by potentiometric titration.

    Scope - (Show below) - (Hide below)

    This International Standard specifies a test method for the determination of total acidity of ethanol by potentiometric titration. The total acidity is reported as acetic acid mass, in milligrams, per ethanol volume, in litres, or as mass percent of acetic acid (% m/m), if the density of ethanol is known.

    NOTE 1 For the purposes of this International Standard, the terms “% m/m” and “% v/v” are used to represent the mass fraction and the volume fraction of a material, respectively.

    NOTE 2 This method was evaluated with ethanol samples with different water contents (0,7 % m/m and 7% m/m) and acidity values (5mg to 50mg HAc per litre of sample).

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

    Committee PTI/13
    Development Note Supersedes 13/30271022 DC. (10/2014)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    ISO 5725-6:1994 Accuracy (trueness and precision) of measurement methods and results — Part 6: Use in practice of accuracy values
    ISO Guide 35:2017 Reference materials Guidance for characterization and assessment of homogeneity and stability
    ISO Guide 30:2015 Reference materials Selected terms and definitions
    ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
    ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
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