International Standard
ISO 3620:1994
Photography — Processing chemicals — Specifications for aluminium potassium sulfate
Reference number
ISO 3620:1994
Edition 2
1994-12
© ISO 2024
International Standard
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Published (Edition 2, 1994)
This standard was last reviewed and confirmed in 2021. Therefore this version remains current.

ISO 3620:1994

Format
Language
CHF 42
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Abstract

Establishes criteria for the purity of photographic-grade aluminium potassium sulfate dodecahydrate, AlK(SO4)2·12H2O, and specifies the tests to be used to determine the purity.

General information

  • Status
     : Published
    Publication date
     : 1994-12
    Corrected version (en)
     : 1995-02
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 2
    Number of pages
     : 4
  • Technical Committee :
    ISO/TC 42
    ICS :
    37.040.30 
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