Proficiency Test on Aviation Gasoline finished

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Download the report (iis13B02) of this Proficiency Test on Aviation Gasoline 100LL

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Summary of this proficiency test:

On 14 June 2013, the proficiency test on Aviation Gasoline 100LL (iis13B02) was finished. It started on 10 April 2013 (see message "Proficiency Test on Aviation Gasoline started" on this website) when the samples were distributed.

In this interlaboratory study 19 participants in 15 different countries have participated.

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

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).