Proficiency Test on Toluene  started

The letter of instructions can be downloaded here as Word document. To download a document, please click the right mouse button and choose the "save as" option.

Download for the main sample of iis16C03 here: the letter of instructions. and the report form.

Summary of this proficiency test:

On 17 February 2016 the proficiency test on Toluene started with 39 participants from 20 different countries.

On that date, the samples were dispatched to the laboratories. Enclosed to the samples were the instructions to the participants for this proficiency test and the material safety data sheet (MSDS).

The samples can be analyzed on: Acid wash color, Appearance, Colour, Copper Corrosion, Density @ 20°C, Distillation, Purity, Benzene, Nonaromatics and Refractive Index @25 deg.

The deadline for reporting results is set on 25 March 2016. 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.

The test results have to be reported via our internet based "results reporting platform". A login and a password can be requested via email to