ISO 20927:2019
International Standard
Current Edition
·
Approved on
25 October 2019
Rubber compounding ingredients — Precipitated silica — Determination of aggregate size distribution by disc centrifuge
ISO 20927:2019 Files
English
14 Pages
Current Edition
43.82 OMR
ISO 20927:2019 Scope
This document specifies a general method for determining the aggregate size distribution (ASD) of silica by using a disc centrifuge according to the principle of sedimentation. As pre-stage the silica is de-agglomerated in water using strong ultrasonic power treatment.
The method is used for precipitated silica.
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