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  • BS ISO 15681-2 : 2003 AMD 15546

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    WATER QUALITY - DETERMINATION OF ORTHOPHOSPHATE AND TOTAL PHOSPHORUS CONTENTS BY FLOW ANALYSIS (FIA AND CFA) - PART 2: METHOD BY CONTINUOUS FLOW ANALYSIS (CFA)

    Available format(s): 

    Superseded date:  28-02-2005

    Language(s): 

    Published date:  23-11-2012

    Publisher:  British Standards Institution

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

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Interferences
       3.1 General interferences
       3.2 Interferences in the determination of total-P
    4 Principle
       4.1 Determination of orthophosphate
       4.2 Total phosphorus with manual digestion
       4.3 Total phosphorus with integral UV digestion and
           hydrolysis
    5 Reagents
    6 Apparatus
       6.1 Continuous-flow analysis (CFA)
       6.2 Additional apparatus
       6.3 Additional apparatus for the determination of total
           phosphorus after integral digestion
    7 Sampling and sample preparation
    8 Procedure
       8.1 Preparation for analysis
       8.2 Instrument performance check
       8.3 Reagent blank check
       8.4 Calibration
       8.5 Check of UV digestion and hydrolysis for total P
           determination
       8.6 Measurement
       8.7 Closing down the system
    9 Calculation of results
    10 Expression of results
    11 Test report
    Annex A (informative) Examples of a CFA system
    Annex B (informative) Precision and accuracy
    Annex C (informative) Determination of orthophosphate-P
                          and total-P by CFA by CFA and tin(II)
                          chloride reduction
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes CFA methods for the determination of orthophosphate in the mass concentration range from 0,01 mg/l to 1,00 mg/l P, and total phosphorus in the mass concentration range from 0,10 mg/l to 10,0 mg/l P.

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    Committee EH/3/2
    Development Note Supersedes 01/562318 DC. Also numbered as BS 6068-2.87(2003). (02/2004) Renumbered and superseded by BS EN ISO 15681-2 (03/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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

    ISO 5667-2:1991 Water quality Sampling Part 2: Guidance on sampling techniques
    ISO 5667-3:2012 Water quality Sampling Part 3: Preservation and handling of water samples
    ISO 5667-1:2006 Water quality Sampling Part 1: Guidance on the design of sampling programmes and sampling techniques
    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
    ISO 8466-1:1990 Water quality Calibration and evaluation of analytical methods and estimation of performance characteristics Part 1: Statistical evaluation of the linear calibration function
    ISO 6878:2004 Water quality Determination of phosphorus Ammonium molybdate spectrometric method
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