Proficiency Test on Turbine Oil finished

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Download the report (iis15L03) of this Proficiency Test on Turbine Oil

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Summary of this proficiency test:

On 13 July 2015, the proficiency test on Turbine Oil iis15L03 was finished. It started on 15 April 2015 (see message "Proficiency Test on Turbine Oil started" on this website) when the samples were distributed.

In this interlaboratory study 39 laboratories in 27 countries have participated.

The participants were requested to determine Total Acid Number, Base Number, Colour, Density @ 15C, Flash Point PMcc, Kinematic viscosity @ 40C, Kinematic viscosity @ 100C, Viscosity Index, Foaming Characteristics, Water Content, , Water Separability, Level of Contamination.

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, ASTM).