ISO 17225-5:2026Published

Solid biofuels — Fuel specifications and classes — Part 5: Graded firewood

Biocombustibles solides — Classes et spécifications des combustibles — Partie 5: Classes de bois de chauffage

Abstract / scope

This document specifies the fuel quality classes and specifications of graded firewood. This document applies only to firewood produced from the following raw materials (see ISO 17225-1:2021, Table 1):

1.1.1 Whole trees without roots;
1.1.3 Stemwood;
1.1.4 Logging residues (thick branches, tops, etc.);
1.2.1 Chemically untreated by-products

Life cycle

Replaces

ISO 17225-5:2021WithdrawnSolid biofuels — Fuel specifications and classes — Part 5: Graded firewoodInternational Standard · Published 5 Jul 2021 · ISO/TC 238