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Download the report (iis07G02X) of this Proficiency Test on Biodiesel 100% FAME

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Summary of this proficiency test:

On 3 July 2007, the proficiency test Biodiesel 100% FAME (iis07G02) was finished. It started on 11 April 2007 (see message “Proficiency Test on Biodiesel 100% FAME started” on this website) when the samples were distributed.

In this international interlaboratory study 64 participants in 29 different countries have participated.

The samples were analyzed on: Acid number, Density, Viscosity @40ºC, Flashpoint, CFPP, Water, Sulphur and sulphated ash, Carbon residue, Total Contamination, Copper Corrosion, Methanol, Ester content, Glycerides, Glycerol, Iodine number, Sodium, Potassium, Phosphorus, Calcium and Magnesium.

The proficiency test report summarises per test, the test results, the analytical methods reported by the participants and the z-scores calculated by i.i.s. 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).

Interested parties can order a hard copy of the report; the price for non-participants is Euro 35.