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ISO 423:1994
Photography -- Processing chemicals -- Specifications for hydroquinone
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Abstract
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.
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Edition: 2 (Monolingual) ICS: 37.040.30 Status: Published Stage: 90.93 (2011-09-30) TC/SC: ISO/TC 42 Number of Pages: 6 -
Revises: ISO 423:1976
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No corrigenda or amendments available
