For * Face channel or channel sample we have a term and definition in Energy.

* Face Channel Or Channel Sample (Energy)

a sample taken at the exposed coal in a mine by cutting away any loose or weathered coal then collecting on a clean surface a sample of the coal seam by chopping out a channel of uniform width and depth; a face channel or face sample is taken at or near the working face, the most freshly exposed coal where actual removal and loading of mined coal is taking place. Any partings greater than 3/8 inch and/or mineral concretions greater than 1/2 inch thick and 2 inches in maximum diameter are normally discarded from a channel sample so as better to represent coal that has been mined, crushed, and screened to remove at least gross non-coal materials.

Similar

Browse words that start with:

• *
• * F
• * Fa
• * Fac

Browse All Terms by First Letter

Term Search