BS ISO 423:1994
Current
The latest, up-to-date edition.
Photography. Processing chemicals. Specification for hydroquinone
Hardcopy , PDF
English
15-03-1995
Establishes criteria for the purity of photographic-grade hydroquinone. Coverage includes: physical properties, hazardous properties, and reagents and glassware.
| Committee |
CPW/42
|
| DevelopmentNote |
Supersedes 90/45990 DC and BS 3103(1978). (03/2005) Reviewed and confirmed by BSI, August 2016. (07/2016)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard establishes criteria for the purity of photographic-grade hydroquinone and describes the tests to be used to determine the purity.
| Standards | Relationship |
| ISO 423:1994 | Identical |
| 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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