Click here to go back to the previous page
2017 Proficiency Test on Nickel release 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.
For viewing the report you will need Adobe Acrobat Reader.
Summary of this proficiency test:
On 8 August 2017, the
proficiency test on Nickel release (iis17V03) was
finished. It started on 10 May 2017 (see message
"Proficiency Test on Nickel release " on this website) when the samples were distributed.
On that date, the samples were
dispatched to the laboratories.
In this interlaboratory study 127 participants in 30 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. For each test a comparison is made between the results of the group of participants and the requirements given by the relevant standard (e.g. EN, ISO, DIN, ASTM).