How to do carbon dating calculation

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In an earlier section we mentioned that the limit of the technique is about 55-60 000 years.

Should the activity of the sample be indistinguishable from the background activity at 1 standard deviation, it is released as background.According to Stuiver and Polach (1977), all laboratories should report their results either directly related to NBS Oxalic acid or indirectly using a sub-standard which is related to it.It is vital for a radiocarbon laboratory to know the contribution to routine sample activity of non-sample radioactivity.If the reservoir corrected conventional radiocarbon age calculated is within the past 200 years, it should by convention be termed 'Modern' (Stuiver and Polach, 192).If a sample age falls after 1950, it is termed greater than Modern, or Where Aabs is the absolute international standard activity, 1/8267 is the lifetime based on the new half life (5730 yr), Y = the year of measurement of the appropriate standard.

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