|Proficiency Test on Jet Fuel A1 finished
The full report can be downloaded (as .pdf-file). To download the report, please click the right mouse button and choose the "save as" option.
Summary of this proficiency test:
On 22 May 2014, the proficiency test on Jet Fuel A1 (iis14J01) was finished. It started on 26 February 2014 (see message â€œProficiency Test on Jet Fuel A1 started on this website) when the samples were distributed.
In this interlaboratory study 108 participants in 49 different countries have participated.
The participants were requested to determine Aromatics by FIA, Aromatics by HPLC, Colour Saybolt, Density @ 15°C, Distillation (IBP, 10% recovered , 20% recovered, 50% recovered, 90% recovered, FBP), Existent gum, Freezing Point, Mercaptan, Particle Size, sulphur, Smoke Point, Specific Energy, Total acidity, Total Sulphur, Naphthalenes, MSEP, Flash Point, JFTOT,and Viscosity @ -20°C.
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).