- 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 ...
Dust passing into the flues of a smelter or metallurgical furnace and which, unless caught, passes out into the atmosphere. It is composed of particles of unchanged or oxidized ore, volatilized lead that has been converted into oxide, carbonate and sulfate ash, fuel, and volatilized products of arsenic, zinc, bismuth, etc.
Industry:Mining
Dust prepared by grinding limestone; used to dilute the coal dust accumulation in a mine so that the dust does not form explosive mixtures with air.
Industry:Mining
Dust prepared for testing in a mine by mixing coal dust and inert dust in predetermined proportions. The mixture may also contain water, and different sizes of coal dust may be mixed to produce some desired intermediate size.
Industry:Mining
Dust with a long history of little adverse effet on the lungs; does not produce significant organic disease or toxic effect when exposures are kept at reasonable levels.
Industry:Mining
Dusts poisonous to body organs, tissue, etc. They include ores of beryllium, arsenic, lead, uranium, radium, thorium, chromium, vanadium, mercury, cadmium, antimony, selenium, manganese, tungsten, nickel, and silver (principally the oxides and carbonates).
Industry:Mining
Dusts that are combustible when airborne. They include metallic dusts (magnesium, aluminum, zinc, tin, iron), coal (bituminous, lignite), and sulfide ores.
Industry:Mining
Dusts that are injurious because of radiation. They include ores of uranium, radium, and thorium.
Industry:Mining
Dust-sampling apparatus into which a measured volume of dusty mine air is drawn through a jet in such a way as to strike a wetted glass plate, to which dust particles adhere.
Industry:Mining
Dutch. Low fertile land, as in The Netherlands and Belgium, reclaimed from the sea by systems of dikes and embankments.
Industry:Mining
Dynamite containing both ammonium nitrate as the chief explosive ingredient and a certain percent of blasting gelatin to make it plastic enough to remain in holes directed upward. It is more resistant to water than ammonia dynamite, but less resistant than gelatin dynamite.
Industry:Mining
