Full Description AD17225-4:2014 FEB2018ED This part of ISO 17225 determines the fuel quality classes and specifications of graded and/or processed wood chips. This part of ISO 17225 covers only wood chips produced from the following raw materials (see ISO 17225-1, Table 1):
• Forest, plantation and other virgin wood
• By-products and residues from wood processing industry
• Chemically untreated used wood