Dating paper documents
Application of this method of age determination is limited to those periods of pottery and fired clay availability ( from about 6000 BC to the present). Radiocarbon WEB-info Provides a large international listing of laboratories that do radiocarbon dating; information on radiocarbon dating; publications and references; and educational materials. The Smithsonian Institution, Museum Conservation Institute (MCI), gives no endorsements for any products, materials or services mentioned in this pamphlet and is not responsible for problems from their use or misuse.MCI does not make any warranty, expressed or implied; does not assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information or process disclosed; nor represents that its use would not infringe privately owned rights.Each document was produced at different moments using a different ink stroke pressure, factors that may alter the results and lead to dating errors.During the natural ageing process of each sample, which had a known age, the research team analysed the evolution in the various volatile components.
So Datink offers a more accurate, less damaging, less intrusive and less harmful result. The excavation work has demonstrated that the settlement, which is now home to the small Kurdish ...So the team used the same procedure as that used to analyse the samples produced for the research. This technique managed to spot the age of the ink on documents written up to five years previously and with an approximation margin of about 20%.In other words, when applying this analysis procedure, the team can indicate whether the document was written 1,500 days previously (just over four years) with a margin of 300 days either way.Radiocarbon dating: radioactive carbon decays to nitrogen with a half-life of 5730 years.In dead material, the decayed 14C is not replaced and its concentration in the object decreases slowly.
The problems Determining the age of a document to find out whether it is authentic is a task influenced by the type of paper on which it has been written, the pressure of the stroke -the amount of ink deposited when the writing was done- or even the technique used.