Particle size: 6mm to 8mm for domestic and small scale systems, 10-12 mm for larger systemsMoisture content: less than 10%Calorific value: less than 4.7kWhkgAsh content: less than 1% (low), less than 3% (standard) or less than 6% (high); to be clearly labelledBulk density: less than 600 kgmSulfur content: less than 300 ppmChlorine: less than: 800ppmOnly additives: lignin and trace amounts of vegetable oil as a die lubricantPacking: PE Bags of 15kgBag, 1000kg jumbo bags, 18-22MT per container 20ft