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.
Status: PublishedPublication date: 2021-02
Edition: 2Number of pages: 8
Technical Committee: ISO/TC 238 Solid biofuels
This standard contributes to the following Sustainable Development Goal:
Buy this standard
|std 1 61||PDF + ePub|
|std 2 61||Paper|
ISO 17225-4:2021Stage: 60.60
Got a question?
Check out our FAQs
+41 22 749 08 88
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)
Keep up to date with ISO
Sign up to our newsletter for the latest news, views and product information.