BS ISO 20927:2019
Rubber compounding ingredients. Precipitated silica. Determination of aggregate size distribution by disc centrifuge

Standard No.

BS ISO 20927:2019

Release Date

2019

Published By

British Standards Institution (BSI)

Latest

BS ISO 20927:2019

Scope

What is ISO 20927 – Rubber compounding ingredients about? ISO 20927 provides methods and procedures for determining the aggregate size distribution by disc centrifuge. ISO 20927 specifies a general method for determining the aggregate size distribution (ASD) silica by using a disc centrifuge according to the principle of sedimentation. As pre-stage, the silica de-agglomerated in water using strong ultrasonic power treatment. The method described in ISO 20927 is used for precipitated silica. Who is ISO 20927 – Rubber compounding ingredients for? ISO 20927 on adhesives is relevant to: Manufacturers of rubber compounding ingredients Chemical Engineer Researchers and scientists Any entity responsible for testing and quality of compounding ingredients Why should you use ISO 20927 – Rubber compounding ingredients ? Compounding rubber involves mixing rubbers and rubber additives, such as processing aids, fillers, and curing agents, in definite proportions to achieve a uniform mixture with desirable physical and chemical properties for low-temperature processing. ISO 20927 defines the aggregate size distribution of silica by disc centrifuge photosedimentometry as a means of describing and specifying these products. It is widely accepted that the aggregate size distribution of silica could impact the performance of these products. Overall, ISO 20927 is a comprehensive guide to provide methods for determining the aggregate size by disc centrifuge, so users will gain a comprehensive understanding of the quality of rubber compounding ingredients to improve the quality and durability.

BS ISO 20927:2019 history

• 2019 BS ISO 20927:2019 Rubber compounding ingredients. Precipitated silica. Determination of aggregate size distribution by disc centrifuge