Type of species European Softwood Species Pine (Pinus sylvestris) - Scots Pine Diameter 6 mm Density 661 lb/ft3 Ash content 0.3-0.5 % Certification DINplus Description Pellets comply with the requirements of STB 2027-2010 and requirements of the European standards EN ISO 17225-2 (DINplus-A1), DIN EN ISO 17225-2 (ENplus-A1).