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ISO 423:1994

Current
Current

The latest, up-to-date edition.

Photography Processing chemicals Specifications for hydroquinone
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

21-04-1994

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.

DocumentType
Standard
Pages
6
PublisherName
International Organization for Standardization
Status
Current
Supersedes

Standards Relationship
BS ISO 423:1994 Identical

I.S. ISO 5799:1991 PHOTOGRAPHY - DIRECT-EXPOSURE MEDICAL AND DENTAL RADIOGRAPHIC FILM/PROCESS COMBINATIONS - DETERMINATION OF ISO SPEED AND AVERAGE GRADIENT

ISO 10349-5:1992 Photography — Photographic-grade chemicals — Test methods — Part 5: Determination of heavy metals and iron content
ISO 565:1990 Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings
ISO 10349-1:2002 Photography Photographic-grade chemicals Test methods Part 1: General
ISO 10349-4:1992 Photography — Photographic-grade chemicals — Test methods — Part 4: Determination of residue after ignition

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