标准编号：ISO 1304:2016
中文名称：橡胶配方配合剂 炭黑 碘吸收值的测定
英文名称：Rubber compounding ingredients — Carbon black — Determination of iodine adsorption number
发布日期：2016-10
标准范围
This International Standard 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).
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