NEN-EN-ISO 787-9
General methods of test for pigments and extenders - Part 9: Determination of pH value of an aqueous suspension
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 April 1995 |
| Status: | active |
| Page Count: | 12 |
| ICS Code (Pigments and extenders): | 87.060.10 |
scope:
The water 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.
Document History
NEN-EN-ISO 787-9
April 1, 1995
General methods of test for pigments and extenders - Part 9: Determination of pH value of an aqueous suspension
The water 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...