ISO 10349-7:1992
Photography — Photographic-grade chemicals — Test methods — Part 7: Determination of alkalinity or acidity
OVERVIEW
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.
COMMENTS
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PRODUCT DETAILS
| Status | Current |
|---|---|
| Edition | 1992 |
| No. of Pages | 2 |
| ICS Classification | 37.040.30 Photographic chemicals |
| Committee | ISO/TC 42 |
| Available for Purchase | For sale in Singapore only |
| Adoption | ISO |