Reference number
ISO 1390-3:1977
© ISO 2024
ISO 1390-3:1977
Maleic anhydride for industrial use — Methods of test — Part 3: Determination of free acidity — Potentiometric method
Edition 1
1977-06
Withdrawn
Withdrawn (Edition 1, 1977)

Abstract

The procedure is based on the potentiometric titration of the free acidity in a test portion with a standard volumetric triethylamine solution in anhydrous methyl ethyl ketone (butanone). - ISO 1390, Parts 1 to 6, replace ISO Recommendation R 1390-1970.

General information

  • Status
     : Withdrawn
    Publication date
     : 1977-06
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 2
  • Technical Committee :
    ISO/TC 47
    ICS :
    71.080.50 
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