Substantiating Post Consumer Recycled Content Declarations under European Rules
European post-consumer recycled claims depend on matching certified mill scope lines directly to batch delivery notes and mass balance allocation ledgers.
Biogenic Carbon
Chemical Origin
Organic materials derived from living organisms contain carbon atoms that were recently pulled from the atmosphere through photosynthesis. This reservoir of biogenic carbon is found in wood, cotton, and agricultural residues used to manufacture paper products. The presence of these compounds distinguishes renewable wood pulp from synthetic, petroleum-derived barrier coatings used in paperboard packaging.
Since the material starts its lifecycle by capturing atmospheric gases, its eventual return to the environment does not increase the net pool of atmospheric carbon, provided the biomass source is sustainably managed.
Analytical Measurement
Laboratories measure the proportion of recently accumulated carbon using isotopic analysis of carbon isotopes. The method compares the ratio of carbon-14 to carbon-12, because fossil materials contain no active carbon-14 due to radioactive decay over millions of years. This testing establishes the exact percentage of renewable material in a finished corrugated box.
Accounting Framework
Greenhouse gas protocols track the release and absorption of these organic emissions separately from fossil fuel emissions. When paperboard decomposes or undergoes incineration, the released biogenic carbon returns to the natural cycle without increasing long-term atmospheric concentrations. This neutral status assumes that managed forests are replanted to absorb an equivalent amount of carbon dioxide over their growth cycle.