DIN EN 14775:2012-11

This document specifies a method for the determination of ash content of all solid biofuels. The ash content is determined by calculation from the mass of the residue remaining after the sample is heated in air under rigidly controlled conditions of time, sample weight and equipment specifications to a controlled temperature of (550 ± 10) °C. Automatic equipments may also be used for the determination if the method is validated with biomass reference samples of an adequate biomass type and these equipments observe specific specified requirements.