ISO 1304:2016

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Rubber compounding ingredients — Carbon black — Determination of iodine adsorption number

Published By	Publication Date	Number of Pages
ISO	2016-10	20

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Categories: 83.040.20 - Rubber compounding ingredients, ISO

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Description

ISO 1304:2016 specifies methods for the determination of iodine adsorption number of carbon blacks for use in the rubber industry. Two titration methods are described:

– method A: titration using a burette and starch as indicator;

– method B: potentiometric titration with an automatic titrator.

The iodine adsorption number is related to the surface area of a carbon black and is generally in agreement with the nitrogen surface area. However, it is significantly depressed in the presence of a high content of volatile or solvent-extractable materials; the iodine adsorption number therefore does not always provide a measure of the specific surface area of a carbon black. Ageing of carbon black can also influence the iodine number.

In case of dispute, the preferred method is method B (potentiometric titration).

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	2016-10
Pages Count	20
Language	France
Edition	5
File Size	399.4 KB
ICS Codes	83.040.20 - Rubber compounding ingredients

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ISO 1304:2016

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