highest calorific value
21Sainsbury's — Infobox Company company name = J Sainsbury plc company company type = Public (lse|SBRY) foundation = 1869 location = Holborn Circus, London, England key people = Justin King, CEO Philip Hampton, Chairman industry = Retail (Grocery) products =… …
22Life expectancy — This article is about the measure of remaining life. For the Dean Koontz novel, see Life Expectancy (novel). For List of countries by life expectancy, see List of countries by life expectancy. Life expectancy is the expected (in the statistical… …
23Anthracite — (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… …
24Oxy-fuel welding and cutting — Oxyacetylene redirects here. For the song, see Cubanate. Side of metal, cut by oxygen propane cutting torch …
25coal classification — ▪ process any of various ways in which coal is grouped. Most classifications are based on the results of chemical analyses and physical tests, but some are more empirical in nature. Coal classifications are important because they provide… …
