1.1 These test methods, Test Method A-Boiling Slurry and Test Method B-Sonic Slurry, are used to indicate the pH of the carbon black surface by measuring the pH of water in contact with the carbon black.
Note 1: The pH of the carbon black is often used in this industry to indicate the relative acidity or alkalinity of carbon black and will be used in the remainder of these test methods to describe this property.
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- Published:
- 12/01/2015
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