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  • BS EN ISO 8968-5:2002

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Milk. Determination of nitrogen content Determination of protein-nitrogen content

    Available format(s):  Hardcopy, PDF

    Superseded date:  28-02-2017

    Language(s):  English

    Published date:  02-04-2002

    Publisher:  British Standards Institution

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

    Foreword
    1 Scope
    2 Normative references
    3 Term and definition
    4 Principle
    5 Reagents
    6 Apparatus
    7 Sampling
    8 Preparation of test sample
    9 Procedure
       9.1 Test portion
       9.2 Direct determination
       9.3 Indirect determination
    10 Calculation and expression of results
       10.1 Calculation of protein-nitrogen content
       10.2 Calculation of true protein content
    11 Precision
       11.1 Interlaboratory test
       11.2 Repeatability
       11.3 Reproducibility
    12 Test report
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes a method for the direct determination of the protein-nitrogen content of liquid milk, whole or skimmed.

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

    Committee AW/5
    Development Note Supersedes 98/712621 DC (02/2002)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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

    ISO 8968-1:2014 Milk and milk products — Determination of nitrogen content — Part 1: Kjeldahl principle and crude protein calculation
    ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
    ISO 8968-4:2016 Milk and milk products Determination of nitrogen content Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
    ISO 707:2008 Milk and milk products — Guidance on sampling
    ISO 8968-2:2001 Milk Determination of nitrogen content Part 2: Block-digestion method (Macro method)
    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 5725:1986 Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests
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