Reference number
ISO 3236:1975
ISO 3236:1975
Sodium sulphate for industrial use — Determination of chlorides content — Mercurimetric method
Edition 1
1975-07
Withdrawn
ISO 3236:1975
8446
Withdrawn (Edition 1, 1975)

Abstract

Applicable to products the content of which expressed as chlorine exceeds 0.005 % (m/m). If the analyst can easily detect the indicator's colour change using a 0.02 N standard volumetric mercury(II) nitrate solution the method can, subjected to agreement, be extended to products the content of which exceeds 0.001 % (m/m). The titration of the chloride ions (Cl- ) is carried out with a 0.1 N standard volumetric solution of mercury(II) nitrate in the presence of 1,5-diphenylcarbazone as indicator.

General information

  •  : Withdrawn
     : 1975-07
    : Withdrawal of International Standard [95.99]
  •  : 1
     : 4
  • ISO/TC 47
    71.060.50 
  • RSS updates

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