ISO 17225-2:2021 PDF

Scope: This document determines the fuel quality classes and specifications of graded wood pellets for non- industrial and industrial use. This document covers only wood pellets 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. Thermally treated biomass pellets (e.g. torrefied pellets) are not included in the scope of this document.

ISO 17225-2:2021 Referenced Document

ISO 14780 Solid biofuels — Sample preparation AMENDMENT 1
ISO 16559 Solid biofuels — Vocabulary*， 2022-01-11 Update
ISO 16948 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen
ISO 16968 Solid biofuels - Determination of minor elements
ISO 16994 Solid biofuels - Determination of total content of sulfur and chlorine
ISO 17225-1:2021 Solid biofuels - Fuel specifications and classes - Part 1: General requirements*， 2021-05-31 Update
ISO 17828 Solid biofuels - Determination of bulk density
ISO 17829 Solid Biofuels - Determination of length and diameter of pellets
ISO 17830 Solid biofuels - Particle size distribution of disintegrated pellets
ISO 17831-1 Solid biofuels - Determination of mechanical durability of pellets and briquettes - Part 1: Pellets
ISO 18122 Solid biofuels — Determination of ash content*， 2022-11-01 Update
ISO 18125 Solid biofuels - Determination of calorific value
ISO 18134-1 Solid biofuels — Determination of moisture content — Part 1: Reference method*， 2022-08-30 Update
ISO 18134-2 Solid biofuels — Determination of moisture content — Part 2: Simplified method*， 2024-02-22 Update
ISO 18135 Solid Biofuels - Sampling
ISO 21404 Solid biofuels — Determination of ash melting behaviour
ISO 21945 Solid biofuels — Simplified sampling method for small scale applications

2021 ISO 17225-2:2021 Solid biofuels — Fuel specifications and classes — Part 2: Graded wood pellets
2014 ISO 17225-2:2014 Solid biofuels - Fuel specifications and classes - Part 2: Graded wood pellets