ISO 1304:2016 橡胶配方配合剂 炭黑 碘吸收值的测定

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

ISO 1304:2016规定了橡胶工业用炭黑碘吸附值的测定方法。描述了两种滴定方法:-方法A:以滴定管和淀粉为指示剂进行滴定；-方法B:使用自动滴定仪进行电位滴定。碘吸附数与炭黑的表面积有关，通常与氮的表面积一致。然而，当存在高含量的挥发性或溶剂可萃取材料时，它会显著降低；因此，碘吸附数并不总能提供炭黑比表面积的测量值。炭黑的老化也会影响碘值。如有争议，首选方法为方法B（电位滴定法）。

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).

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