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An Interim Progress Report on Stages 1 and 2 of the International Collaborative Program

Published online by Cambridge University Press:  18 July 2016

E M Scott ,
T C Aitchison ,
D D Harkness ,
M S Baxter  and
G T Cook
E M Scott
Affiliation:
NERC 14C Laboratory, NEL, East Kilbride, Glasgow, G75 OQU, Scotland
T C Aitchison
Affiliation:
Dept of Statistics, University of Glasgow, Glasgow G12 8QW, Scotland
D D Harkness
Affiliation:
NERC 14C Laboratory, NEL, East Kilbride, Glasgow, G75 OQU, Scotland
M S Baxter
Affiliation:
Dept of Statistics, University of Glasgow, Glasgow G12 8QW, Scotland
G T Cook
Affiliation:
Dept of Statistics, University of Glasgow, Glasgow G12 8QW, Scotland
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Abstract

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We report in this paper on a preliminary analysis of Stages 1 and 2 of the International Collaborative program. We have chosen to concentrate on the internal and external consistencies of the participating laboratories. The two stages so far completed have dealt only with the processes of sample synthesis and counting, and results indicate that the major component of variability lies in the counting process. Outlying laboratories are observed at each stage. A third stage is in progress which will allow an assessment of any further variability due to sample pretreatment. With the inclusion of duplicate samples in each stage, we are able to report that laboratories are remarkably consistent internally, ie, the differences between duplicates generally agree with the laboratory's claimed precision.

Type
I. Sample Preparation and Measurement Techniques
Information
Radiocarbon , Volume 31 , Issue 3: June 20-25, 1988 Dubrovnik, Yugoslavia , 1989 , pp. 414 - 421
Copyright
Copyright © The American Journal of Science 

References

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