ASTM D388-2005 标准详情
- 标准号:ASTM D388-2005
- 中文标题:煤分级的标准分类
- 英文标题:Standard Classification of Coals by Rank
- 标准类别:美国材料与试验协会ASTM
- 发布日期:2005
This classification establishes categories of coal based on gradational properties that depend principally on the degree of metamorphism to which the coal was subjected while buried. These categories indicate ranges of physical and chemical character
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