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Session Topic: 10B, Miscellaneous |
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Paper Title: One Small Cal Lab's Experience with an International Inter-Laboratory Comparison |
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Date & Time: THURSDAY, August 8, 2002 |
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10:30am - 12:10n - PARALLEL SESSIONS - SESSION 10 |
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Speaker: Georgette Macdonald
GJS Mass Measurement |
Email: GJS@fishersci.ca |
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GJS Mass Measurement is a calibration laboratory accredited to ISO 17025 by the Calibration Laboratory Assessment Service (CLAS) and the Standards Council of Canada (SCC). As a proficiency testing opportunity CLAS involved us in an international inter-laboratory comparison (ILC) coordinated by CENAM. For us, the goals of participating in this ILC were: to meet the requirement of proficiency testing of ISO 17025, to provide impartial evidence of our competence and to reflect a positive image of CLAS. However, there was some reluctance, both by us and by CLAS, since the comparison was to be done in “absolute mass” and our scope is reported in “conventional mass”. We looked at two approaches for converting the values. There were some difficulties with the shipping of the weights and customs. The case was not closed properly; the case had been packed in Styrofoam peanuts, some of which made it next to the weights. It was also fairly clear that the package had been opened by customs and there were fingerprints on the weights. This increased our work, as we had to calibrate the weights twice, once as they were received and once after the weights were cleaned by the mass expert at the National Research Council of Canada (NRCC). The final report on the ILC is still in draft form but we are very satisfied with the results. We feel we have achieved our objectives in this endeavor and that the International ILC can generate confidence that measurements are transferable across the continent. |
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