SR EN ISO 787-9:2003

General methods of test for pigments and extenders - Part 9: Determination of pH value of aqueous suspension (ISO 787-9:1981)

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.

General information

Status : Withdrawn
Approval date : 4/21/2003
Publish date : 4/22/2003
Withdrawal date : 8/30/2019
Number of pages : 10
ICS : 87.060.10 Pigments and extenders
Technical Committee : 338 - Adhesives

Relations with other standards:

Replaces SR ISO 787-9:1995
Replaces STAS 7948/8-69
Replaced by SR EN ISO 787-9:2019
A99 SR ISO 787-9:1995/A99:2003