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Document Designation and Title Year Select Item(s) D291 Standard Test Method for Cubic Foot Weight of Crushed Bituminous Coal 07e1 D291 Standard Test Method for Cubic Foot Weight of Crushed Bituminous Coal 07 D291 Standard Test Method for Cubic Foot Weight of Crushed Bituminous Coal 86(2002) D291 Standard Test Method for Cubic Foot Weight of Crushed Bituminous Coal 86(1994)e1