A European standard for wood fuel pellets was introduced in 2011 EN 14961-2 the specifications for premium wood pellets are:
- Particle size: 6mm to 8mm for domestic and small scale systems, 10-12 mm for larger systems
- Moisture content: less than 10%
- Calorific value: less than 4.7kWh/kg
- Ash content: less than 1% (low), less than 3% (standard) or less than 6% (high); to be clearly labelled
- Bulk density: less than 600 kg/m
- Sulfur content: less than 300 ppm
- Chlorine: less than: 800ppm
- Only additives: lignin and trace amounts of vegetable oil as a die lubricant
- Packing: PE Bags of 15kg/Bag, 1000kg jumbo bags,18-22MT per container 20ft
