Derived from biomass. - Note 1 to entry: Biomass can have undergone physical, chemical or biological treatment(s). - Note 2 to entry: The correct spelling of "bio-based" is with a hyphen (-). It is however in common usage sometimes spelt without a hyphen. - Note 3 to entry: The methods to determine and communicate "bio-based" as a product's characteristic are detailed in specific standards being developed by CEN/TC 411.