BS ISO 420:1994
Current
The latest, up-to-date edition.
Photography. Processing chemicals. Specifications for potassium bromide
Hardcopy , PDF
English
15-03-1995
Establishes criteria for the purity of photographic grade potassium bromide. Also specifies the test methods to be used to determine the purity. Coverage includes: physical properties, hazardous properties, storage, apparatus, procedure, iron content, halide content, alkalinity, and reagents and glassware.
| Committee |
CPW/42
|
| DevelopmentNote |
Supersedes 92/38218 DC and BS 3307(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 potassium bromide and specifies the test methods to be used to determine the purity.
| Standards | Relationship |
| ISO 420:1994 | Identical |
| ISO 10349-8:2002 | Photography — Photographic-grade chemicals — Test methods — Part 8: Determination of volatile matter |
| ISO 10349-5:1992 | Photography — Photographic-grade chemicals — Test methods — Part 5: Determination of heavy metals and iron content |
| ISO 10349-6:1992 | Photography — Photographic-grade chemicals — Test methods — Part 6: Determination of halide content |
| ISO 10349-1:2002 | Photography — Photographic-grade chemicals — Test methods — Part 1: General |
| ISO 10349-7:1992 | Photography — Photographic-grade chemicals — Test methods — Part 7: Determination of alkalinity or acidity |
| ISO 10349-3:1992 | Photography — Photographic-grade chemicals — Test methods — Part 3: Determination of matter insoluble in ammonium hydroxide solution |
| ISO 10349-10:1992 | Photography — Photographic-grade chemicals — Test methods — Part 10: Determination of sulfide content |
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