This standard specifies the classification, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of biomass carbon. It is suitable for mixing the carbon powder produced by reasonably and quickly carbonizing various (lignin-containing) agricultural and forestry wastes, biomass straw, etc., adding an appropriate amount of coke powder or high-quality anthracite and a certain proportion of additives and binders. Biochar is made by stirring, rolling, extruding and drying.