D121-24
Standard Terminology of Coal and Coke
D4371-06
Standard Test Method for Determining the Washability Characteristics of Coal
D2796-94
Terminology Relating to Megascopic Description of Coal and Coal Seams and Microscopical Description and Analysis of Coal (Withdrawn 1995)
D2234/D2234M-20
Standard Practice for Collection of a Gross Sample of Coal
D388-23
Standard Classification of Coals by Rank