Ash content

The amount of material remaining after a known mass of filter paper is completely combusted. Expressed as a %.

FAQ
The amount of material remaining after a known mass of filter paper is completely combusted. Expressed as a %.
The chemical composition of ash can depend on that o the substance burned. Cellulose ash for instance contains metal carbonates as well as oxides formed from metals that are originally compounded in the wood.
Inorganic matter in a fuel can be described as ash. Ash content can originate from biomass itself in biomass fuels. For example, materials that a plant absorbed from water or soil during growth, or from a supply chain.