GB/T 5211.13-1986 "Determination of Acidity or Alkalinity of the Aqueous Extract of Pigments" specifies the method for determining the acidity or alkalinity of the aqueous extract of pigments, applicable to various types of pigments. The method involves extracting the soluble acidic or alkaline components from pigments using water and measuring the pH value of the extract with a pH meter or indicator method. The test requires equipment such as a pH meter, beaker, stirrer, filtration device, and volumetric flask, providing a basis for evaluating the application compatibility and storage stability of pigments.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G50 | ICS | 87.060.10 |
| Release Date | 1986-08-26 00:00:00 | Implementation Date | 1987-08-01 00:00:00 |