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The passage of the Federal Coal Mine Health and Safety Act of 1969 established respirable dust exposure limits, dust sampling requirements for inspectors and mine operators, a voluntary x-ray surveillance program to identify CWP in underground coal miners, and a benefits program to provide compensation to affected workers and their families.

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Coal Through an Analysis of its Mechanism and the Affecting Factors," Society of Mining Engineers of AIME, Preprint # 86-62, Presented at the SME Annual Meeting, New Orleans, LA, March, 1986. Stage Reaction Weight Temperature combustion • Combustion

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Elements of practical coal mining (Book) | OSTI.GOV

OSTI.GOV Book: Elements of practical coal mining. Elements of practical coal mining. Full Record; Other Related Research; Authors: Cassidy, S M [1] + Show Author Affiliations. ed. Publication Date: Mon Jan 01 00:00:00 EST 1973 OSTI Identifier: 5092007

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FIGURE 7-3. Variation of selected coal properties with coal rank. The chemical approach to characterizing coals is to determine the amounts of the principal chemical elements in them. In the jargon of the coal business, this procedure is called the ultimate analysis of coal. Carbon and hydrogen are the principal combustible elements in coal.

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Elements of practical coal mining. Responsibility Douglas F. Crickmer, David A. Zegeer, editors ; Coal Division of SME-AIME [and] Howard N. Eavenson Award Fund of AIME, co-sponsors. Edition 2d ed. Imprint New York, N.Y. : Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers, c1981.

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Elements of practical coal mining Society of Mining Engineers of AIME. Coal Division Zegeer, David A. Crickmer, Douglas F. Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers

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Coal, containing all the elements that are present in nature and more than 200 minerals, has a complex chemical structure, making it …

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