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  • BS 4938-1:1982

    Current The latest, up-to-date edition.

    Dirt content of milk Method for the determination of dirt content (reference method)

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-12-1982

    Publisher:  British Standards Institution

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

    Foreword
    Cooperating organizations
    Method
    0 Introduction
    1 Scope
    2 Definitions
    3 Principle
    4 Reagents
    5 Apparatus
    6 Preparation of test sample
    7 Procedure
    8 Expression of results
    9 Test report
    Appendices
    A Information on interpretation of results: a
       discussion of recommendations of the Society for
       Analytical Chemistry
    B Bibliography

    Abstract - (Show below) - (Hide below)

    Laboratory method whereby aggregated calcium caseinate micelles and cellular debris are successively dissolved and discarded followed by determination of the amount of insoluble matter remaining. An Appendix gives information on interpretation of results.

    Scope - (Show below) - (Hide below)

    This Part of BS 4938 describes a reference method for the determination of the dirt content of milk.

    The method is primarily intended for application to raw herd milk and raw bulk milk but it can be applied to any milk (whole, partly skimmed or skimmed), raw or heat treated.

    Information on the interpretation of results is given in Appendix A.

    A bibliography is given in Appendix B.

    NOTE The titles of the publications referred to in this standard are listed on the inside back cover.

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

    Committee AW/5
    Development Note Supersedes 79/55241 DC. (07/2005) Reviewed and confirmed by BSI, November 2011. (10/2011)
    Document Type Standard
    Publisher British Standards Institution
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 4938-2:1982 Dirt content of milk Method for the determination of visible dirt content (rapid method)
    BS 1741-1:1987 Methods for chemical analysis of liquid milk and cream General introduction including preparation of samples

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

    BS 604:1982 Specification for graduated glass measuring cylinders
    BS 736(1955) : LATEST SPECIFICATION FOR CENTRIFUGE TUBES AND SEDIMENTATION VESSELS FOR THE DETERMINATION OF VISIBLE DIRT IN MILK
    BS 1704:1985 Specification for solid-stem general purpose thermometers
    BS 4938-2:1982 Dirt content of milk Method for the determination of visible dirt content (rapid method)
    BS 4316:1968 Specification for apparatus for measurement of packed red cell volume
    BS 4402:1982 Specification for safety requirements for laboratory centrifuges
    BS 5190:1985 Specification for pipeline filters, filter bodies and filter elements for milking installations
    BS 1957:1953 Presentation of numerical values (fineness of expression; rounding of numbers)
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