Proficiency Test on Gasoil (ASTM Spec) finished

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Download the report (iis16G04ASTM) of this Proficiency Test on Gasoil (ASTM Spec).

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Summary of this proficiency test:

On 30 November 2016, the proficiency test on Gasoil (ASTM Spec) (iis16G04ASTM) was finished. It started on 31 August 2016 (see message "Proficiency Test on Gasoil (ASTM Spec) started" on this website) when the samples were distributed.

In this interlaboratory study 193 participants in 78 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).