ASTM D409-1997E2 标准详情
- 标准号:ASTM D409-1997E2
- 中文标题:哈德格罗夫机法测定煤炭可磨度的试验方法
- 英文标题:standard test method for grindability of coal by the hardgrove-machine method
- 标准类别:美国材料与试验协会ASTM
- 发布日期:1997
1.1 This test method covers the determination of the relative grindability or ease of pulverization of coals in comparison with coals chosen as standards. A prepared and sized sample receives a definite amount of grinding energy in a miniature pulve
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