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Brown coals, hardcoals, antracite and combustible shales. Method of sampling for exploatation tests
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Hard coals and brown coals. Method of sampling by boring holes
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Brown coals, hard coals and anthracite. Accelerated method for the determination of moisture-holding capacity
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Brown coals, hard coals, anthracites, coal briquettes and combustible shales. Methods for determination of mineral impurities (rock) and smalls
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Brown coals, hard coals, and anthracite. Method for determination of hygroscopic moisture
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Hard coal. Determination of caking power by Gray-King coke method
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