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Document Designation and Title Year Select Item(s) A247 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings 06e1 A247 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings 06 A247 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings 67(1998)e1 A247 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings 67(1998)