Anyone who can share the standards or guidelines required for wood/biomas to produce charcoal. E.g. Moisture content values, fixed carbon, volatile mater, ash of the wood.
There are standard procedures in American Standards for Testing materials like ASTM D 4442 and ASTM E1534-93, ASTM D3175 for moisture, ash content and volatile matter in wood. For Fixed Carbon Content, the Automatic Proximate Analyzer instrument can be used.
Reference paper, "Kaur, P.J., Kardam, V., Pant, K.K. et al. Characterization of commercially important Asian bamboo species. Eur. J. Wood Prod. 74, 137–139 (2016). https://doi.org/10.1007/s00107-015-0977-y"