Over deze norm
NEN-EN 16640 specifies a method for the determination of the bio-based carbon content in products, based on the 14C content measurement. This European Standard also specifies two test methods to be used for the determination of the 14C content from which the bio-based carbon content is calculated: - Method A: Liquid scintillation-counter method (LSC) ; - Method B: Accelerator mass spectrometry (AMS). A third method, Method C: Beta ionization (BI) can also be used for the determination of the 14C content and is described in Annex D (informative) The bio-based carbon content is expressed by a fraction of sample mass or as a fraction of the total carbon content. This calculation method is applicable to any product containing carbon, including bio composites.
|Nederlandse titel||Bio-based producten - Bepaling van het gehalte bio-based koolstof met behulp van de radiocarbon methode / 14C methode|
|Engelse titel||Bio-based products - Bio-based carbon content - Determination of the bio-based carbon content using the radiocarbon method / 14C method|