Proficiency Test on MTBE / ETBE started

The report forms can be downloaded (as Word document). To download the forms, please click the right mouse button and choose the "save as" option.  

Download the report forms (iis10C03M) of this Proficiency Test on MTBE here: report form

Download the report forms (iis10C03E) of this Proficiency Test on ETBE here: report form

Summary of this proficiency test:

On 24 March 2010 the proficiency test on MTBE   started with 23 participants from 14 different countries.

On 24 March 2010 the proficiency test on ETBE   started with 18 participants from 11 different countries.

On that date, samples #1032 and #1033 were dispatched to the laboratories. Enclosed to the samples were the instructions to the participants for this proficiency test, forms for the reporting of the analysis results and the material safety data sheet (MSDS).

The MTBE samples have to be analyzed on: Appearance, Water, Refractive index, Density @15C, Purity, Purity on dry basis and some GC- impurities: Diisobutylenes, Methanol, t-Butylalcohol, C4-, C5- and Other hydrocarbons.

The ETBE samples have to be analyzed on: Appearance, Water, Density @15C, Sulphur, Nitrogen, Purity, Purity on dry basis and some GC- impurities: Diisobutylenes, Ethanol, t-Butylalcohol, C4-, C5- and Other hydrocarbons.  

The deadline for reporting results is set on 23 April 2010. A laboratory that sends in results after deadline will definitely not get direct feedback in case any of its results are suspect! So be in good time to get the most out of this proficiency test.