CSA Preface
This is the first edition of CAN/CSA-ISO 17225-2, Solid biofuels - Fuel specifications and classes - Part 2: Graded wood pellets, which is an adoption without modification of the identically titled ISO (International Organization for Standardization) Standard 17225-2 (first edition, 2014-05-01).
This Standard is one of seven Standards developed by ISO/TC 238 on Solid Biofuels that are being adopted by CSA Group under the series Fuel specifications and classes, which consists of the following:
a) ISO 17225-1, Part 1: General requirements;
b) ISO 17225-2, Part 2: Graded wood pellets;
c) ISO 17225-3, Part 3: Graded wood briquettes;
d) ISO 17225-4, Part 4: Graded wood chips;
e) ISO 17225-5, Part 5: Graded firewood;
f) ISO 17225-6, Part 6: Graded non-woody pellets; and
g) ISO 17225-7, Part 7: Graded non-woody briquettes.
This Standard is intended to be used in conjunction with CAN/CSA-ISO 17225-1:15, Solid biofuels - Fuel specifications and classes - Part 1: General requirements (adopted ISO 17225-1:2014).
The objective of the ISO 17225 series is to provide clear classification principles for solid biofuels and to serve as a tool to enable efficient trading of biofuels and enable a common understanding between producers and users. It will also facilitate authority permission procedures and reporting.
This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.
Scope
This part of ISO 17225 determines the fuel quality classes and specifications of graded wood pellets for non-industrial and industrial use. This part of ISO 17225 covers only wood pellets produced from the following raw materials (see ISO 17225-1, 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.
Thermally treated biomass pellets (e.g. torrefied pellets) are not included in the scope of this part of ISO 17225. Torrefaction is a mild pre-treatment of biomass at a temperature between 200 °C to 300 °C.
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