ISO 6791-1981 标准详情
- 标准号:ISO 6791-1981
- 中文标题:铝生产用碳素材料 电极用沥青 喹啉不溶物含量的测定
- 英文标题:Carbonaceous materials for the production of aluminium; Pitch for electrodes; Determination of contents of quinoline-insoluble material
- 标准类别:国际标准化组织标准ISO
- 发布日期:1981-11
Specifies a conventional gravimetric method for the determination. A test portion ist reated with quinoline in a beaker at 70 to 80 鳦 for 15 to 20 min. Then the dissolved test portion and the residue are brought to a Hartley funnel fitted with a filt
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