Proficiency Test on Jet Fuel A1 finished

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Download the report (iis12J01) of this Proficiency Test on Jet Fuel A1

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Summary of this proficiency test:

On 25 May 2010, the proficiency test on Jet Fuel A1 (iis12J01) was finished. It started on 29 February 2012 (see message “Proficiency Test on Jet Fuel A1 started” on this website) when the samples were distributed.

In this interlaboratory study 107 participants in 59 different countries have participated.

The participants were requested to determine Aromatics, Color Saybolt, Density @ 15°C, Distillation, Existent gum (unwashed), Flash Point, Freezing Point, Tube rating, Delta P / Pressure drop, Pumped fuel volume, Heater tube control temp, Mercaptan sulphur , MSEP, Naphtalenes, Smoke Point,Specific Energy, Total acidity, Total sulphur, Viscosity @ -20°C and Particle Size Distribution.

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).