A European standard, EN 16640, defines a test method for determining the bio-based carbon content in products based on 14C content measurement. This standard also provides the following three test methods for determining the 14C content from which the bio-based carbon content is calculated:
The advantages and disadvantages of these test methods are shown in the table in the standard.
Bio-based carbon content is expressed as a fraction of the sample mass or a fraction of the total carbon content. This calculation method is applicable to any carbon-containing product, including biocomposites. The standard in question does not provide a methodology for calculating the biomass content of a sample. For this purpose, the following two standards have been published:
The 14C found in the products is due to recent atmospheric carbon dioxide. Due to its radioactive decay, it is almost absent in fossil products from 20 to 30 years old. The 14C content is therefore considered a tracer of recently synthesized products from atmospheric carbon dioxide, and especially recently produced bio-based products. The determination of the biomass content is based on the 14C measurement in bio-based products, which enables the calculation of the bio-based carbon fraction.
The EN 16640 standard describes the generally accepted methods for collecting the 14C content from the sample and converting the carbon in the sample to carbon dioxide. Measurement of 14C content is already generally accepted as methods for determining the age of objects.
Among the numerous test, measurement, analysis and evaluation studies that our organization provides for businesses in various sectors, with its trained and expert staff and advanced technological equipment, testing services for the determination of bio-based carbon content in bio-based products using the radiocarbon method within the scope of EN 16640 standard. gives.
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