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See Chinese contents: GB 475-2008 GB 475-2008: [GB/T 475-2008] Method for manual sampling of commercial coal
This Standard stipulates the terms and definitions of manual sampling method of commercial coal; general principles and precision of sampling; establishment of sampling schemes; sampling methods; manual sampling instruments; packaging and marking of coal sample; sampling report. This Standard is applicable to lignite, bituminous coal and anthracite.
