We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
  • BS ISO 15681-1 : 2003 AMD 15545

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
    Add to Watchlist
    This Standard has been added successfully to your Watchlist.
    Please visit My Watchlist to see all standards that you are watching.
    Please log in or to add this standard to your Watchlist.
    We could not add this standard to your Watchlist.
    Please retry or contact support for assistance.
    You need to be logged in to add this standard to your Watchlist.
    Please log in now or create an account to add.
    You already added this Product in the Watchlist.


    Available format(s): 

    Superseded date:  07-02-2005


    Published date:  23-11-2012

    Publisher:  British Standards Institution

    Add to Watchlist

    Sorry this product is not available in your region.

    Add To Cart

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

    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
    5 Reagents
    6 Apparatus
       6.1 Flow injection analysis (FIA)
       6.2 Additional apparatus
       6.3 Additional apparatus for the determination of total
    7 Sampling and sample preparation
    8 Procedure
       8.1 Analysis preparation
       8.2 Instrument performance check
       8.3 Reagent blank check
       8.4 Calibration
       8.5 Check of digestion efficiency for determination of
       8.6 Measurement
       8.7 Closing down the system
    9 Calculation of results
    10 Expression of results
    11 Test report
    Annex A (informative) Example of an FIA system
    Annex B (informative) Precision and accuracy
    Annex C (informative) Determination of orthophosphate-P and
                          total-P by FIA using ascorbic acid
    Annex D (informative) Replacement of hydrazine sulfate by DEHA

    Abstract - (Show below) - (Hide below)

    Describes flow injection analysis (FIA) methods for the determination of orthophosphate in the mass concentration range from 0,01 mg/l to 1,0 mg/l (P), and total phosphorus by manual digestion in accordance with ISO 6878 [5], [6] for the mass concentration range from 0,1 mg/l to 10 mg/l (P).

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

    Committee EH/3/2
    Development Note Supersedes 01/562317 DC Also numbered as BS 6068-2.86(2003). (02/2004) Renumbered and superseded by BS EN ISO 15681-1. (02/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By

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

    ISO 5667-2:1991 Water quality Sampling Part 2: Guidance on sampling techniques
    ISO 15681-2:2003 Water quality Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) Part 2: Method by continuous flow analysis (CFA)
    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
    • Access your standards online with a subscription


      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective