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  • BS 7755-3.7:1995

    Current The latest, up-to-date edition.

    Soil quality. Chemical methods Determination of total nitrogen. Modified Kjeldahl method

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-10-1995

    Publisher:  British Standards Institution

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

    Committees responsible
    National foreword
    Method
    1. Scope
    2. Normative references
    3. Principle
    4. Reagents
    5. Apparatus
    6. Pretreatment of soil samples
    7. Procedure
    8. Calculation of the result
    9. Precision
    10. Test report
    Annex
    A. (informative) Bibliography
    Table
    1. General average of nitrogen content, sr, r, sR and R
         calculated after elimination of outliers

    Abstract - (Show below) - (Hide below)

    Applicable to all types of soil.

    Scope - (Show below) - (Hide below)

    This International Standard specifies a method for the determination of the total nitrogen (ammonium-N, nitrate-N, nitrite-N and organic N) content of a soil. Nitrogen in N-N-linkages, N-O-linkages and some heterocyclics (especially pyridine) is only partially determined.

    This International Standard is applicable to all types of soils.

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    Committee EH/4
    Development Note Supersedes 93/502663 DC Also numbered as ISO 11261. (04/2005) Reviewed and confirmed by BSI, July, 2005. (07/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    10/30205348 DC : 0 BS 10175 - INVESTIGATION OF POTENTIALLY CONTAMINATED SITES - CODE OF PRACTICE
    BS 10175(2011) : 2011 INVESTIGATION OF POTENTIALLY CONTAMINATED SITES - CODE OF PRACTICE
    BS 3882:2007 Specification for topsoil and requirements for use
    BS 3882:2015 Specification for topsoil
    14/30297814 DC : 0 BS 3882 - SPECIFICATION FOR TOPSOIL

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

    BS 7755-3.5:1995 Soil quality. Chemical methods Pretreatment of samples for physico-chemical analyses
    BS 7755-3.1:1994 Soil quality. Chemical methods Determination of dry matter and water content on a mass basis by a gravimetric method
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