This document determines the fuel quality classes and specifications of graded wood briquettes. This document covers only wood briquettes produced from the following raw materials (see ISO 17225‑1: 2021, Table 1):

1.1 Forest, plantation and other virgin wood

1.2 By-products and residues from wood processing industry

1.3.1 Chemically untreated used wood

NOTE Thermally treated biomass briquettes (e.g. torrefied briquettes) are not included in the scope of this document.