Subscribe to updates
ISO 10349-7:1992
Photography -- Photographic-grade chemicals -- Test methods -- Part 7: Determination of alkalinity or acidity
Media and price
| Price | Language | ||
|---|---|---|---|
| CHF 38,00 | Add to basket | ||
| Paper | CHF 38,00 | Add to basket |
Abstract
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.
