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ISO 4276:1978

Withdrawn Date published:

Warning: Withdrawn Standard. This document has been withdrawn without replacement. You may wish to search for a more up to date equivalent.

Anhydrous ammonia for industrial use — Evaluation of residue on evaporation — Gravimetric method

Applicable to products having a residue of equal to or more than 0.02 % (m/m). For products obtained in modern plants this evaluation is not usually required. Indicates to the risk in handling with this product. Analysis by evaporation, at ambient temperature, of a test portion and weighing of the residue. Titration of the ammonia contained in the residue with standard volumetric sulphuric acid solution in the presence of an indicator. Subtraction of this mass from that of the redidue. A typical apparatus for the test is shown in a figure.

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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 4276:1978

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