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Download the report (iis14P04) of this Proficiency Test on Bisphenol-A .

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Summary of this proficiency test:

On 21 July 2014, the proficiency test on Bisphenol-A (iis14P04) was finished. It started on 30 April 2014 (see message 'Proficiency Test on Bisphenol-A started') when the samples were distributed.

In this interlaboratory study 64 participants in 19 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. ISO, ASTM, EN).