Solid biofuels - Fuel specifications and classes - Part 5: Graded firewood (ISO 17225-5:2021)
This document determines the fuel quality classes and specifications of graded firewood. This document covers only firewood produced from the following raw materials (see ISO 17725‑1:2021, Table 1):— 1.1.1 Whole trees without roots — 1.1.3 Stem wood — 1.1.4 Logging residues (thick branches, tops etc.) — 1.2.1 Chemically untreated by-products and residues from wood processing industry.
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