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ISO 423:1994

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Photography -- Processing chemicals -- Specifications for hydroquinone

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Establishes criteria for the purity and describes the test methods for identity tests, residue after ignition, heavy metals content, iron content, appearance of solution. Annex A describes preparation of the standard ammonium cerium(IV) hexanitrate solution.


SDO ISO: International Organization for Standardization
Document Number ISO 423
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 42/WG 6
Publish Date Document Id Type View
Not Available ISO 423:1994 Revision