Table 1 Comparison of selected wood pellets standards and specific standards for the various forms of biomass processing. The first part refers to the classification of the origin and sources of biomass derived from the environment and its processed forms that enter the market. The second part, characterise six groups of products: Wood pe lets, Wood briquettes, Wood chips, Fire wood, Non-wood pellets. The purpose of this actions, taken by the European Commissi on, is to create a common nomencla ture for communication between the suppliers of biomass, processors, consumers and producers treatment. of equipment associated with its