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ISO 7105:1985

Current Date published:

Liquefied anhydrous ammonia for industrial use — Determination of water content — Karl Fischer method

A test portion is evaporated in the presence of ethanediol and the water content of the residue is determined by the Karl Fischer method with direct electrometric measurement. The method is applicable to products having water contents equal to or greater than 50 mg/kg. For water contents greater than 1000 mg/kg it is preferable to dilute the evaporation residue with anhydrous methanol in accordance with ISO 4276 and titrate an aliquot portion of the diluted solution.

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  • AS/NZS 2022:2003

    Anhydrous ammonia - Storage and handling

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    Anhydrous ammonia - Storage and handling: Amendment 1

  • BS 4431:1989

    Methods of sampling and test for liquefied anhydrous ammonia

  • ISO 7103:1982

    Liquefied anhydrous ammonia for industrial use — Sampling — Taking a laboratory sample

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ISO 7105:1985

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