Evaluation of applicable techniques for the determination of the bio-based content

This report presents the comparison between different methods for the bio-based content determination. Radiocarbon method supplemented by elemental analysis (EN 16785-1) is the standardized method used for the determination of bio-based carbon content and total bio-based content. Application of EN 16785-1 to a certain product results in a fixed number for the bio-based content of the product, describing which fraction of the product originates from biomass. This report discusses a possibility to use stable isotope analysis for the determination of total bio-based content.