ISO 1389-7:1977
w
ISO 1389-7:1977
5961

Abstract 

The principle consists in the dissolution of a test portion in acetone, removal of 1,4-naphthoquinone present in the solution by extraction with benzene. Polarographic measurement of the aqueous solution and determination of the mass of maleic anhydride by means of the calibration graph. - ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.


General information 

  •  :  Withdrawn
     : 1977-02
  •  : 1
     : 3
  •  : ISO/TC 47 Chemistry
  •  :
    71.080.50 Anhydrides

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