Mass Balance Verification Protocols for Recycled Polyolefin Customs Audit Compliance
Verify polyolefin mass balance imports by auditing site-level yield losses, enforcing ISO 22095 credit retirements, and anchoring claims to batch records.
ASTM D6866 Radiocarbon
Meaning
Carbon dating protocols determine the biobased content of solid and liquid samples by measuring the ratio of carbon isotopes. Application of astm d6866 radiocarbon distinguishes between carbon derived from recent biological sources and carbon sourced from fossil fuels. It uses accelerator mass spectrometry to count carbon 14 atoms which are present in living matter but absent in petroleum.
This standard stops at the calculation of the biobased carbon percentage and does not measure the total weight of biological material in a blend.
Isotope Analysis
Laboratory testing relies on the radioactive decay of the carbon 14 isotope to establish the age of organic material. Analysis using astm d6866 radiocarbon separates modern carbon from fossil sources by measuring this decay. Analysts compare the sample activity to a modern reference standard to quantify the renewable portion.
Feedstock Verification
Polymer manufacturers use specific testing methods to prove the authenticity of green claims for bio-polyethylene. Verification via astm d6866 radiocarbon ensures the resin contains the advertised amount of plant based material. It prevents the mislabeling of conventional resins as renewable.
Renewable Content
The final result is expressed as a fraction of the total organic carbon in the product. Measurements of astm d6866 radiocarbon indicate a reliance on modern biomass such as corn or sugar cane. Low percentages suggest a heavy fossil fuel contribution.