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⇤ APPLICATIONS & ARTICLES

Particle Sizing using DCP for ASTM Carbon Black

The principles of particle sizing using a disc centrifuge photosedimentometer are reviewed. The importance of the extinction correction for accurate measurements is emphasized. Results on the ASTM A4 through F4 series of reference blacks is presented. Comparisons between reference materials are made. Different sample preparations are discussed. Stability of such preparations with time is shown.