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United States Bureau of Mines
Industry: Mining
Number of terms: 33118
Number of blossaries: 0
Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources. Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
Half-cell used to measure electromotive force; potential being that of mercury and mercurous chloride in contact with saturated solution of potassium chloride. Used in pH measurement.
Industry:Mining
Hand filling, during which the miner rejects stone or dirt and loads only clean coal. Similar methods are adopted in metal mining.
Industry:Mining
Hand or bench work involved in the assembly of finished parts by a fitter.
Industry:Mining
Hand selected cross-vein material of longest fibres in native or unfiberized form. It comes in chunks and must be mechanically processed to develop the usefulness of the fibre.
Industry:Mining
Hard black lustrous variety of hydrocarbon found in proximity of igneous intrusions.
Industry:Mining
Hard chalk.
Industry:Mining
Hard metal ridge applied to the outside surface of bottom-hole equipment and built up as close as practicable to the set-outside-diameter size of a reaming shell, which serves as a wear pad.
Industry:Mining
Hard rock below alluvial deposits.
Industry:Mining
Hard salt, a mixture of sylvinite and kieserite, with some anhydrite, found in the Stassfuert salt deposits.
Industry:Mining
Hard steel cylinders in bearings that have very low frictional resistance.
Industry:Mining