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ISO 17225-5:2026

Solid biofuels — Fuel specifications and classes — Part 5: Graded firewood ISO 17225-5:2026

Publication date:   Apr 9, 2026

General information

60.60   Standard published   Apr 9, 2026

ISO

ISO/TC 238 Solid biofuels

International Standard

27.190   Biological sources and alternative sources of energy | 75.160.40   Biofuels

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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

PREVIOUSLY

WITHDRAWN
ISO 17225-5:2021

NOW

PUBLISHED
ISO 17225-5:2026
60.60 Standard published
Apr 9, 2026




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