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EVS-EN ISO 787-9:2000

General methods of test for pigments and extenders - Part 9: Determination of pH value of an aqueous suspension

General information
Withdrawn from 15.04.2019
Base Documents
ISO 787-9:1981; EN ISO 787-9:1996
Directives or regulations
None
Standard history
Status
Date
Type
Name
15.04.2019
Main
01.01.2000
Main
The water used shall be freshly distilled water, boiled before use, but for 5 to 10 min only, in order to avoid an increase of its pH value due to alkali dissolved from the glass. Preparation of a suspension of the material under test, stopper the container, shaking, allow to stand any time, removing the stopper and determination, to the nearest 0.1 unit, of the pH value of the suspension. - Cancels and replaces ISO Recommendation R 787/9-1970.
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