1.1 This practice describes procedures for collecting a coal sample from a channel extending from top to bottom in the face of a coal seam in a mine.
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- 09/01/2015
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NFPA-FIRE NFPA-FLUID EEMUA UL CTA AWS
NFPA-FIRE NFPA-FLUID EEMUA UL CTA AWS
1.1 This practice describes procedures for collecting a coal sample from a channel extending from top to bottom in the face of a coal seam in a mine.
