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Published online by Cambridge University Press: 18 July 2016
During the International Radiocarbon Conference in Dubrovnik in June 1988, several laboratories expressed the need for quality assurance. Furthermore, on several occasions 14C laboratories have shown an interest in reference materials of known 14C activity, apart from the recent activity of the NBS oxalic acid.
Groningen, April 3, 1989 W G Mook