Proficiency Test on TCEP in plastics finished

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Download the report (iis15P01) of this Proficiency Test on TCEP in plastics

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Summary of this proficiency test:

On 16 April 2015, the proficiency test on TCEP in plastics (iis15P01) was finished. It started on 21 January 2015 (see message Proficiency Test on TCEP in plastics started on this website) when the samples were distributed.

In this international interlaboratory study 35 participants in 33 different countries have participated.

The samples were tested on: TCEP.

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. ISO, DIN, ASTM).