標準號：BS 4140-13-1986
中文標準名稱：氧化鋁試驗方法.第13部分:試樣溶液鹽酸加壓處理制備方法
英文標準名稱：Methods of test for aluminium oxide - Preparation of sample solution by treatment with hydrochloric acid under pressure
標準類型：G13
發布日期：1986/1/31 12:00:00
實施日期：1986/1/31 12:00:00
中國標準分類號：G13
國際標準分類號：71.100.10
適用范圍：This International Standard specifies a method for the dissolution of aluminium oxide primarily used for the production of aluminium, by means of attack by hydrochloric acid under pressure in a sealed borosilicate glass tube, in order to obtain a test solution for certain determinations. The method is not applicable to the preparation of test solutions for the determination of silicon, sodium or boron, owing to the possibility of extraction of these elements from the glass. NOTE —Hydrochloric acid may be replaced by another appropriate acid. In this case, the acid should be stated in the method of test of the impurity.