Reference number
ISO 3235:1975
© ISO 2024
ISO 3235:1975
Sodium sulphate for industrial use — Determination of acid-insoluble matter
Edition 1
1975-07
Withdrawn
Withdrawn (Edition 1, 1975)

Abstract

Applicable to anhydrous and hydrated products. The principle consists in dissolution of a test portion in water, subsequent addition of hydrochloric acid. Heating on a boiling wather bath for 30 min, filtration, drying and weighing of the residue.

General information

  • Status
     : Withdrawn
    Publication date
     : 1975-07
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 3
  • Technical Committee :
    ISO/TC 47
    ICS :
    71.060.50 
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