mineral-matter-free basis
1Mineral-matter-free basis — Mineral matter in coal is the parent material in coal from which ash is derived and which comes from minerals present in the original plant materials that formed the coal, or from extraneous sources such as sediments and precipitates from… …
2Mineral — For other uses, see Mineral (disambiguation). An assortment of minerals. A mineral is a naturally occurring …
3ГОСТ 17070-87: Угли. Термины и определения — Терминология ГОСТ 17070 87: Угли. Термины и определения оригинал документа: 44. Аналитическая проба угля D. Analysenprobe Е. Analysis sample F. Echantillon pour analyse Проба угля, полученная в результате обработки объединенной или лабораторной… …
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4Ranks of Coal as Classified by the American Society for Testing and Materials, Table — ▪ Table caloric value (moist, mineral matter free basis)* fixed carbon percentage volatile matter percentage British thermal megajoules (dry, mineral matter free basis) (dry, mineral matter free basis) units per pound …
5Anthracite — (Greek Ανθρακίτης, literally a type of coal , from Anthrax [Άνθραξ] , coal) is a hard, compact variety of mineral coal that has a high lustre. It has the highest carbon count and contains the fewest impurities of all coals, despite its lower… …
6high volatile A bituminous coal — n the rank of coal, within the bituminous class of the Classification D388, such that on the dry and mineral matter free basis, the volatile matter content of the coal is greater than 31 % (or the fixed carbon content is less than 69 %), and its… …
7Anthracite — The highest rank of coal; used primarily for residential and commercial space heating. It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile …
8Sub-bituminous coal — is a type of coal whose properties range from those of lignite to those of bituminous coal and are used primarily as fuel for steam electric power generation. Sub bituminous coal may be dull, dark brown to black, soft and crumbly at the lower end …
9Lignite — For other uses, see Lignite (disambiguation). Lignite …
10Bituminous coal — A dense coal, usually black, sometimes dark brown, often with well defined bands of bright and dull material, used primarily as fuel in steam electric power generation, with substantial quantities also used for heat and power applications in… …
