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  • NS EN 12176 : 1ED 1998

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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    Available format(s): 

    Withdrawn date:  01-11-2013


    Published date:  13-01-2013

    Publisher:  Norwegian Standards (Norges Standardiseringsforbund)

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

    0 Introduction
    1 Scope
    2 Normative references
    3 Definitions
        3.1 pH value
        3.2 Standard buffer solutions
    4 Principle
    5 Interferences
    6 Hazards
    7 Reagents
    8 Apparatus
    9 Preparation of samples
        9.1 Sample preservation
        9.2 Preparation of liquid sludge samples
        9.3 Preparation of paste-like and solid sludges
    10 Measurement of pH-value
        10.1 pH meter set up and standardization
        10.2 Measurements
    11 Expression of results
    12 Test report
    Annex A (normative) primary pH-standard reference solutions
    (according to ISO 10523)
    Annex B (informative) Bibliographical references

    Abstract - (Show below) - (Hide below)

    Covers the sludges, i.e. and sludges products from storm water handling, night soil, urban wastewater collecting systems, urban wastewater treatment plants, treating of industrial wastewater similar to urban waste water, water supply treatment plants, and water distribution systems. Does not include hazardous sludges from industry. Applies to determination of pH values of sludges, including liquid, paste-like or solid matter.

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

    Document Type Standard
    Publisher Norwegian Standards (Norges Standardiseringsforbund)
    Status Withdrawn
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