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  • BS EN ISO 11905-1:1998

    Current The latest, up-to-date edition.

    Water quality. Determination of nitrogen. Method using oxidative digestion with peroxodisulfate

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-07-1998

    Publisher:  British Standards Institution

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

    1 Scope
    2 Normative references
    3 Range of detection
    4 Sensitivity
    5 Principle
    6 Reagents
    7 Apparatus
    8 Sampling and samples
    9 Procedure
        9.1 Test portion
        9.2 Blank test
        9.3 Cleaning digestion vessels
        9.4 Digestion
        9.5 Verification of recovery of organic nitrogen
        9.6 Starting operation
        9.7 Initial sensitivity setting
        9.8 Calibration
        9.9 Determination
    10 Expression of results
        10.1 Method of calculation
        10.2 Precision data
    11 Test report

    Abstract - (Show below) - (Hide below)

    Defines a procedure for determining the nitrogen content in water, in the form of free ammonia, nitrite, nitrate and organic nitrogen compounds capable of converting to nitrate under the oxidative conditions described. Does not determine dissolved nitrogen. Applies to the analysing of natural fresh water, sea water, drinking, surface water and treated sewage effluent. ALSO KNOWN AS BS 6068-2.62(1998)

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

    Committee EH/3/2
    Development Note Also numbered as BS 6068-2.62(1998). Supersedes 95/521206 DC. (11/2005) Reviewed and confirmed by BSI, July 2008. (06/2008)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    ISO 2854:1976 Statistical interpretation of data — Techniques of estimation and tests relating to means and variances
    EN 1484 : 1997 WATER ANALYSIS - GUIDELINES FOR THE DETERMINATION OF TOTAL ORGANIC CARBON (TOC) AND DISSOLVED ORGANIC CARBON (DOC)
    ISO 6060:1989 Water quality — Determination of the chemical oxygen demand
    ISO 10304-1:2007 Water quality Determination of dissolved anions by liquid chromatography of ions Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate
    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
    EN ISO 3696:1995 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
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