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ISO 17225-4:2021

Solid biofuels — Fuel specifications and classes — Part 4: Graded wood chips ISO 17225-4:2021

Publication date:   Feb 19, 2021

General information

60.60 Standard published   Feb 19, 2021

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 determines the fuel quality classes and specifications of graded wood chips. This document covers only wood chips produced from the following raw materials (see ISO 17225-1:2021, Table 1):
1.1 Forest, plantation and other virgin wood;
1.2 By-products and residues from wood processing industry;
1.3.1 Chemically untreated used wood.
This document covers only wood chips, which are produced with sharp tools, and does not cover hog fuel, which is produced with blunt tools.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 17225-4:2014

NOW

PUBLISHED
ISO 17225-4:2021
60.60 Standard published
Feb 19, 2021