Norm

ISO 10349-7:1992 en

Photography - Photographic-grade chemicals - Test methods - Part 7: Determination of alkalinity or acidity

31,57

Over deze norm

Status Definitief
Aantal pagina's 2
Gepubliceerd op 30-12-1992
Taal Engels
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.

Details

ICS-code 37.040.30
Nederlandse titel Photography - Photographic-grade chemicals - Test methods - Part 7: Determination of alkalinity or acidity
Engelse titel Photography - Photographic-grade chemicals - Test methods - Part 7: Determination of alkalinity or acidity

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