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4、-ture) 6876:1974 (ISO 687 Solid mineral fuelsCokeDetermination of moisture in the general analysis test sample) 13909-1:2001 1: - (ISO 13909-1:2001 Hard coal and cokeMechanical samplingPart 1: General introduction 13909-5:2001, 5: (ISO 13909-5:2001 Hard coal and cokeMechanical samplingPart 5 Samplin
5、g from moving streams) 13909 7:2001 . . 7. - (ISO 13909-7:2001 Hard coal and coke Mechanical sampling Part 7: Methods for determining the precision of sampling, sample preparation fnd testing) 13909-8:2001, . 8 - (ISO 13909 8:2001, Hard coal and coke Mechanical sam-pling Part 8: Methods of testing f
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