Reference number
ISO 2516:1973
ISO 2516:1973
Ammonium hydrogen carbonate for industrial use (including foodstuffs) — Determination of total alkalinity — Volumetric method
Edition 1
1973-04
Withdrawn
ISO 2516:1973
7450
Withdrawn (Edition 1, 1973)

Abstract

The principle of the analysis consists in acidification of a test solution by addition of an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of methyl red- methylene blue mixed indicator.

General information

  •  : Withdrawn
     : 1973-04
    : Withdrawal of International Standard [95.99]
  •  : 1
     : 1
  • ISO/TC 47
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