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  • ISO 2993:1974

    Current The latest, up-to-date edition.

    Ammonium sulphate for industrial use — Determination of free acidity — Titrimetric method

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English, French

    Published date:  01-04-1974

    Publisher:  International Organization for Standardization

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    Abstract - (Show below) - (Hide below)

    Applicable to products having a free acidity, expressed as H2 SO4 , equal to or more than 0.01 % (m/m). Dissolution of a test portion in Water and titration with standard volumetric sodium hydroxide solution in the presence of an indicator. The indicator must have a colour change in the pH range between 5.2 and 5.6. Has also been approved by the IUPAC.

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    Document Type Standard
    Publisher International Organization for Standardization
    Status Current

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

    EN 12123:2012 Chemicals used for treatment of water intended for human consumption - Ammonium sulfate
    12/30258200 DC : 0 BS EN 12123 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM SULFATE
    PREN 12123 : DRAFT 2012 CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM SULFATE
    I.S. EN 12123:2012 CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM SULFATE
    ONORM EN 12123 : 2013 CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM SULFATE
    DIN EN 12123:2013-02 Chemicals used for treatment of water intended for human consumption - Ammonium sulfate
    UNI EN 12123 : 2013 CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - AMMONIUM SULFATE
    BS EN 12123:2012 Chemicals used for treatment of water intended for human consumption. Ammonium sulfate
    UNE-EN 12123:2013 Chemicals used for treatment of water intended for human consumption - Ammonium sulfate
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