Proficiency Test on Aviation Gasoline finished

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Download the report (iis14B02) of this Proficiency Test on Aviation Gasoline.

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Summary of this proficiency test:

On 22 May 2014, the proficiency test on Aviation Gasoline (iis14B02) was finished. It started on 12 March 2014 (see message "Proficiency Test on Aviation Gasoline started" on this website) when the samples were distributed.

In this interlaboratory study 17 participants in 12 different countries have participated.

The participants were requested to determine Colour, Copper strip 2hrs/100ºC, Distillation, Density @15ºC, Aromatics, Existent gum (washed), Freezing Point, Heat of Combustion, Lead, potential Gum, Sulphur, water reaction, MON.

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).