14 C isotope as biomarker 2 25.01.13 14 C isotope in the whole - PowerPoint PPT Presentation

CEN TC411 WG3 Frits Bakker www.ecn.nl

14 C isotope as biomarker 2 25.01.13

14 C isotope in the whole carbon cycle Suess effect ISO/TC 146 SC1 CEN/TC 335 WG5 14 CO 2 in stackgas CEN/TC249 WG17 CHN ,total carbon Biobased carbon CEN/TC343 WG3 Biogenic Carbon content in SRF CEN/TC 411 Biobased products 3 25.01.13

KBBPPS WP3, scope and ruggedness tests New horizontal standard, based as much as possible on existing protocols 4 25.01.13

Scope biobased Carbon content Scope This Technical Specification specifies a method for the determination of the bio- based carbon content in products, based on the 14 C content measurement. It also specifies three test methods to be used for the determination of the 14 C content from which the bio-based carbon content is calculated: Method A: Proportional scintillation-counter method (PSM); Method B: Beta-ionisation (BI); Method C: Accelerator mass spectrometry (AMS). The bio-based carbon content is expressed by a fraction of sample mass, as a fraction of the total carbon content or as a fraction of the total organic carbon content. This calculation method is applicable to any product containing organic carbon, including biocomposites. NOTE: This Technical Specification does not provide the methodology for the calculation of the biomass content of a sample . 5 25.01.13

Questions for stakeholders - Ruggedness test, we need difficult samples - Which raw products? - Which end products? - Solids, liquids, gases? - Concentration ranges? - Demands on performance characteristics? 6 25.01.13