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2017 Proficiency Test on Total Metals in polymers finished.


The full report can be downloaded (as .pdf-file). To download the report, please click the right mouse button and choose the "save as" option.

 - Download the report (iis17P06) of this Proficiency Test on Total Metals in polymers.  


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Summary of this proficiency test:


On 20 October 2017, the proficiency test on Total Metals in polymers (iis17P06) was finished. It started on 9 August 2017 (see message "Proficiency Test on Total Metals in polymers " on this website) when the samples were distributed.

On that date, the samples were dispatched to the laboratories.


In this interlaboratory study 168 laboratories in 35 different countries have participated.


The proficiency test report summarises per test, the test results, the analytical methods reported by the participants and the z-scores calculated for each participant are tabulated. Also, for each test, the calculated summary (e.g. mean, standard deviation and reproducibility) is given.


In the report also an evaluation of the test results is given. Problems encountered in the analyses are mentioned and - where possible - suggestions for quality improvement are formulated.


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