This standard specifies the terminology, basic principles, general requirements, marking content, marking scheme, marking performance and use requirements of commercial coal marking. This standard applies to coal sold within the territory of the People's Republic of China.
GB/T 25209-2010 Referenced Document
GB/T 14436 General principles of industrial product guarantee documents
GB/T 17608 Division of variety and grading for coal products*, 2022-10-12 Update