硬煤 奥阿(Audibent-Aruu)膨胀计试验
详细信息
- 中文主题词：试验 ; 煤 ; 测试 ; 固体燃料 ; 焦化 ; 烟煤 ; 膨胀计测定法 ; 丸状材料 ; 物理试验 ; 小丸
- 标准号：ISO 349-1975
- 发布日期：1975-01-01
- 英文题名：Hard coal; Audibert-Arnu dilatometer test
- 英文主题词：Bituminous coal ; Coal ; Coking ; Dilatometry ; Hard coal ; Pellets ; Physical testing ; Solid fuels ; Testing ; Tests
- 标准状态：现行
- 发布单位：IX-ISO
- 国际标准分类号：73.040
- 载体形态：11P;A4
- 中国标准分类号：D21
- 国别：国际标准化组织
文摘
Specifies a method for determining the swelling properties of hard coal when heated under standard conditions in a dilatometer. In performing the method a pencil made of powdered coal formed under pressure is inserted into a precisely calibrated narrow tube and topped by a calibrated steel rod which slides in the bore of the tube. The whole is heated at a constant and definite rate. By making regular readings of the displacement of the rod as a function of the temperature and expressing the displacements observed as percentages of the original length of the penicl a curve is plotted.