標準號：BS ISO 1304-2006
中文標準名稱：橡膠配合劑.炭黑.粒徑分布的測定
英文標準名稱：Rubber compounding ingredients - Carbon black - Determination of iodine adsorption number
標準類型：G49
發布日期：2006/4/28 12:00:00
實施日期：2006/4/28 12:00:00
中國標準分類號：G49
國際標準分類號：83.040.20
適用范圍：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.