Full Description

This document determines the fuel quality classes and specifications of graded firewood. This document covers only firewood produced from the following raw materials (see ISO177251:2021, Table1):

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.