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|Title:||The BIOREMA project - Part 2: International interlaboratory comparison for biodiesel test methods|
|Authors:||ULBERTH-BUCHGRABER MANUELA; POTALIVO Monica; HELD Andrea; BALDAN Annarita; VAN DER VEEN Adriaan; ENT Hugo; CUNHA Valnei S; DARODA Romeu J.; LANG Brian; SCHANTZ Michele M.; HEARN Ruth; BROWN Richard J. C.; BREWER Paul J.|
|Citation:||ACCREDITATION AND QUALITY ASSURANCE vol. 18 no. 1 p. 29-39|
|Type:||Articles in periodicals and books|
|Abstract:||The results of an interlaboratory comparison, using various measurement methods to carry out biodiesel testing, are presented and the findings are discussed. The interlaboratory comparison was organised within the framework of an EU-funded project called BIOREMA. A general overview of the project and results of an interlaboratory comparison on bioethanol are published as Part 1 and 2 of this series of papers. In the study presented here, reference values, provided by national metrology institutes and expert laboratories, were used for evaluating the results. Consensus values, derived from the results of all participants, were used to assess any bias between the results from the national metrology institutes and testing laboratories. The emphasis in this interlaboratory comparison was not the performance rating of the individual laboratories, but recognising and interpreting differences caused by the measurement methods applied. For most biodiesel parameters, a good agreement of measurement results was found among different methods, and between the consensus and reference values. The study material was a rapeseed oil fatty acid methyl ester, for which it was demonstrated that it is feasible to prepare and characterise reference materials for biodiesel with well-established reference values for many parameters.|
|JRC Directorate:||Health, Consumers and Reference Materials|
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