This part of ISO 17225 specifies the fuel quality grades and specifications for classified non-woody pellets. This part of ISO 17225 covers only non-woody pellets made from the following raw materials (see ISO 17225-1). NOTE 1 Stem-like biomass comes from plants with a non-pulp stem that die at the end of the growing season. This includes grain or seed plants from the food producing or processing industry and their by-products, such as: B. Cereals. 3 biomass of fruits; 4 aquatic biomass; 5 defined and undefined mixtures of biomass. NOTE 2 Group 5 Defined and undefined mixtures includes defined and undefined mixtures from the main groups of solid biogenic fuels based on origin: woody biomass, stalk-like biomass, fruit biomass and aquatic biomass. Defined mixtures are intentionally mixed biogenic fuels, while undefined mixtures are randomly mixed biogenic fuels. The origin of the defined and undefined mixtures shall be described using ISO 17225-1, Table 1. If a defined or undefined mixture of solid biogenic fuels contains chemically treated material, this must be declared. NOTE 3 Thermally treated biomass pellets (e.g. torrefied pellets) are not within the scope of this part of ISO 17225. Torrefaction is a mild pretreatment of biomass at a temperature between 200 °C and 300 °C.
EN ISO 17225-6:2014 Referenced Document
EN 15270:2007 Pellet burners for small heating boilers - Definitions, requirements, testing, marking*， 2024-04-20 Update
EN 303-5:2012 Heating boilers - Part 5: Heating boilers for solid fuels@ manually and automatically stoked@ nominal heat output of up to 500 kW - Terminology@ requirements@ testing and marking
ISO 16559:2014 Solid biofuels - Terminology, definitions and descriptions*， 2014-07-01 Update
ISO 16948 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen*， 2015-05-01 Update
ISO 16968 Solid biofuels - Determination of minor elements*， 2015-05-01 Update
ISO 16994:2015 Solid biofuels — Determination of total content of sulfur and chlorine*， 2015-03-25 Update
ISO 17225-1:2014 Solid biofuels - Fuel specifications and classes - Part 1: General requirements
ISO 17828 Solid biofuels - Determination of bulk density*， 2015-12-01 Update
ISO 17829 Solid Biofuels - Determination of length and diameter of pellets*， 2015-10-01 Update
ISO 17831-1 Solid biofuels - Determination of mechanical durability of pellets and briquettes - Part 1: Pellets*， 2015-12-01 Update
ISO 18122 Solid biofuels — Determination of ash content*， 2022-11-01 Update
ISO 18125 Solid biofuels - Determination of calorific value*， 2017-04-01 Update
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*， 2017-04-01 Update
ISO 18846 Solid biofuels - Determination of fines content in samples of pellets*， 2016-09-01 Update
EN ISO 17225-6:2014 history
2021EN ISO 17225-6:2021 Solid biofuels - Fuel specifications and classes - Part 6: Graded non-woody pellets (ISO 17225-6:2021)
2014EN ISO 17225-6:2014 Solid biofuels - Fuel specifications and classes - Part 6: Graded non-woody pellets
EN ISO 17225-6:2014 Solid biofuels - Fuel specifications and classes - Part 6: Graded non-woody pellets has been changed from EN 14961-6:2012 Solid biofuels - Fuel specifications and classes - Part 6: Nonwoody pellets for non-industrial use.