ISO 15825:2017 pdf download – Rubber compounding ingredients — Carbon black — Determination of aggregate size distribution by disc centrifuge photosedimentometry. 5 Apparatus 5.1 Disc centrifuge photosedimentometer (DCP) 1) , capable of rotational speeds of 1 000 r/min to 11 000 r/min or greater, with integral spin feed-back control (accuracy and stability of rotational speed better than ± 0,05 %), spin fluid volume from 10 cm 3 to 20 cm 3 , stable temperature of spin fluid, stroboscope to monitor the rotating disc both for stability and streaming anomalies, and an appropriate optical turbidity measuring device. 5.2 Energy meter, capable...