Reference number
ISO 3620:1994
International Standard
ISO 3620:1994
Photography — Processing chemicals — Specifications for aluminium potassium sulfate
Edition 2
1994-12
Read sample
ISO 3620:1994
20283
Published (Edition 2, 1994)
This publication was last reviewed and confirmed in 2021. Therefore this version remains current.

ISO 3620:1994

ISO 3620:1994
20283
Language
Format
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

  •  : Published
     : 1994-12
     : 1995-02
    : International Standard confirmed [90.93]
  •  : 2
     : 4
  • ISO/TC 42
    37.040.30 
  • RSS updates

Life cycle

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