This international standard determines the terminology and definitions for solid biofuels. According to the scope of the ISO/TC 238 this standard only includes raw and processed material originating from - forestry and arboriculture, - agriculture and horticulture, - aquaculture. Materials originating from different recycling processes of end-of-life-products are not within the scope but relevant terms are included for information. Areas covered by ISO/TC 28/SC 7 Liquid biofuels and ISO/TC 193 Natural gas are excluded. Other standards with a different scope than this International Standard may have different definitions than this standard.