Radiometric dating measures

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ASTM D6866-18 is the current active version of the standard as of March 2018.The radiocarbon dating method may have started as a tool in archaeology and other fossil studies, but it has now found other applications, notably the quantification of the biogenic fractions in biobased materials.

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The ratio is reported as a percentage with the units “p MC” (percent modern carbon).The pretreatment steps for the two techniques are different, but both involve high-vacuum operations.For radiometric measurement, the samples are combusted in a specialized vacuum system to produce carbon dioxide.The procedures for these techniques vary widely, depending on the type of material being measured.The steps involve various physical and chemical operations to eliminate extraneous materials.

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