BS EN ISO 17225-5:2026

This standard BS EN ISO 17225-5:2026 Solid biofuels. Fuel specifications and classes is classified in these ICS categories:

• 27.190 Biological sources and alternative sources of energy
• 75.160.40 Biofuels

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