Reference number
ISO 3702:1976
© ISO 2024
ISO 3702:1976
Anhydrous hydrogen fluoride for industrial use — Determination of sulphur dioxide content — Iodometric method
Edition 1
1976-06
Withdrawn
Withdrawn (Edition 1, 1976)

Abstract

Applicable to products having SO2 contents between 0.002 % (m/m) and 0.20 % (m/m). The principle consists in addition of a measured volume of iodine solution to a test portion. Back-titration of the excess iodine using a standard volumetric sodium thiosulphate solution and calculation of the SO2 content from the amount of iodine used.

General information

  • Status
     : Withdrawn
    Publication date
     : 1976-06
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 2
  • Technical Committee :
    ISO/TC 47
    ICS :
    71.060.30 
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