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Status : Withdrawn
Standard Type : Main
Document Year : 2009
Pages : 12
Edition : 2
Section Volume : Methods of analysis (ISO/TC 27/SC 5.)
ISO 7404-2:2009 specifies methods for preparing a polished particulate block from a sample of crushed coal for analysis by reflectance microscopy. These methods can also be applied to the preparation of a polished, embedded lump of coal.