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Download the report (iis08G03X) of this Proficiency Test on Diesel B5 (5% FAME)

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Summary of this proficiency test:

On 10 June 2008, the proficiency test on Diesel B5 (5% FAME) (iis08G03) was finished. It started on 2 April 2008 (see message “Proficiency Test on Diesel B5 (5% FAME) started” on this website) when the samples were distributed.

In this international interlaboratory study 75 participants in 33 different countries have participated.

The participants were requested to determine Ash content, Cetane index (ASTM D976), Cloud point, Cold filter plugging point (CFPP), Conradson carbon residue (CCR), Density @°15C, Distillation, Flash Point PMcc, Kinematic viscosity @ 40°C, Lubricity, Oxidation stability, Polyaromatics Hydrocarbon, Sulphur content, Total contamination, Water content and FAME content.  

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.