Biobased testing measures the percentage of recent biological carbon in materials that have traditionally been derived exclusively from petroleum products. These include a growing range of materials, from bio-based plastics, to ethanol-containing fuels, to cleaning products, paints and fertilizers.
The radiocarbon content of airborne particulates can similarly reflect the relative contribution of bio-based content and petroleum in combustion products. These measurements are relevant because of the rise of government-based incentive programs designed to reduce fossil fuel dependence. The testing and reporting protocols for Biobased Content are specified by ASTM D-6866-16.