ISO 5934:1980
Crude sodium borates for industrial use — Determination of alkali-soluble copper and manganese contents — Zinc bis(dibenzyldithiocarbamate) and formaldehyde oxime photometric methods
Reference number
ISO 5934:1980
Edition 1
1980-11
© ISO 2024
Withdrawn
Withdrawn (Edition 1, 1980)

Abstract

Describes a method applicable to products in which the alkalisoluble copper and manganese contents excess 0,25 and 0,5 mg/kg, respectively. The principle consists in successively determining the manganese and copper contents of the two coloured complexes obtained during the analysis, followed by photometric measurements at wavelengths of about 435 nm and 450 nm, respectively.

General information

  • Status
     : Withdrawn
    Publication date
     : 1980-11
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 5
  • Technical Committee :
    ISO/TC 47
    ICS :
    71.060.50 
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