ISO 10349-7:1992
Current
The latest, up-to-date edition.
Photography — Photographic-grade chemicals — Test methods — Part 7: Determination of alkalinity or acidity
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English
30-12-1992
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The method is based on weighing the test portion, dissolution in carbon-dioxide-free water, adding phenolphthalein indicator, and observing the colour of the test solution: if the test solution turns pink, determination of the alkalinity, if it remains colourless, determination of the acidity.
| Committee |
ISO/TC 42
|
| DocumentType |
Standard
|
| Pages |
2
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| BS ISO 420:1994 | Photography. Processing chemicals. Specifications for potassium bromide |
| ISO 3625:1994 | Photography — Processing chemicals — Specifications for potassium hydroxide |
| BS ISO 3623:1994 | Photography. Processing chemicals. Specifications for anhydrous potassium carbonate |
| BS ISO 3617:1994 | Photography. Processing chemicals. Specifications for sodium hydroxide |
| ISO 10636:1994 | Photography Processing chemicals Specifications for anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate |
| BS ISO 418:2001 | Photography. Processing chemicals. Specifications for anhydrous sodium sulfite |
| BS ISO 3943:1993 | Photography. Processing chemicals. Specifications for anhydrous sodium acetate |
| BS ISO 3625:1994 | Photography. Processing chemicals. Specifications for potassium hydroxide |
| ISO 3617:1994 | Photography Processing chemicals Specifications for sodium hydroxide |
| ISO 420:1994 | Photography Processing chemicals Specifications for potassium bromide |
| ISO 418:2001 | Photography Processing chemicals Specifications for anhydrous sodium sulfite |
| BS ISO 10636:1994 | Photography. Processing chemicals. Specification for anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate |
| ISO 3943:1993 | Photography — Processing chemicals — Specifications for anhydrous sodium acetate |
| ISO 3623:1994 | Photography Processing chemicals Specifications for anhydrous potassium carbonate |
| ISO 10349-1:2002 | Photography Photographic-grade chemicals Test methods Part 1: General |
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