ASTM D 4596-2007 标准详情
- 标准号:ASTM D 4596-2007
- 中文标题:收集矿井中掘槽采样煤的标准实施规程
- 英文标题:standard practice for collection of channel samples of coal in a mine
- 标准类别:美国材料与试验协会ASTM
- 发布日期:2007-05-01
A properly collected face channel sample that includes the total coal bed interval provides a sample that is a representative cross section of the coal bed at the point of sampling. Channel samples are taken for subsequent testing needed for evaluati
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