ISO 21822:2019
Fine ceramics (advanced ceramics, advanced technical ceramics) — Measurement of iso-electric point of ceramic powder
This document specifies the test method to determine the iso-electric point of fine ceramic powders, which is measured in the state of suspension.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus and calibration
5.1 Zeta potential analyser and calibration
5.2 pH meter
5.3 Sample dispersion vessel
5.4 Sonicator
5.5 Balance
5.6 Temperature-control device
5.7 Magnetic stirrer
6 Operational procedures
6.1 Dispersion solution
6.2 pH-adjusting acid or base and electrolyte solution
6.3 Sample preparation and dispersion
6.3.1 Preparation
6.3.2 Dispersion
6.3.3 Stabilization
7 Measurement
8 Determination of the iso-electric point
9 Test report
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus and calibration
5.1 Zeta potential analyser and calibration
5.2 pH meter
5.3 Sample dispersion vessel
5.4 Sonicator
5.5 Balance
5.6 Temperature-control device
5.7 Magnetic stirrer
6 Operational procedures
6.1 Dispersion solution
6.2 pH-adjusting acid or base and electrolyte solution
6.3 Sample preparation and dispersion
6.3.1 Preparation
6.3.2 Dispersion
6.3.3 Stabilization
7 Measurement
8 Determination of the iso-electric point
9 Test report
Bibliography