標準號：ISO 20203-2005
中文標準名稱：鋁生產中使用的碳素材料.煅燒焦炭.用X-射線衍射法測定煅燒石油焦的晶體粒度
英文標準名稱：Carbonaceous materials used in the production of aluminium - Calcined coke - Determination of crystallite size of calcined petroleum coke by X-ray diffraction
標準類型：Q52
發布日期：2005/10/1 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：Q52
國際標準分類號：77.120.10
適用范圍：This International Standard describes a test method for the determination of the mean crystallite height of a representative, pulverized sample of calcined petroleum coke by interpretation of an X-ray diffraction pattern produced through conventional X-ray scanning techniques. It applies to carbonaceous materials used in the production of aluminium. Calcined petroleum coke contains crystallites of different heights. This test method covers the determination of the average height of all crystallites in the sample by empirical interpretation of the X-ray diffraction pattern. The crystallite diameter (Lα) is not determined by this test method.