Proficiency Test on Isopropanol 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 sample of iis15C17 here: the letter of instructions and the report form.

Summary of this proficiency test:

On 11 November 2015 the proficiency test on vIsopropanol  started with 17 participants from 11 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 have to be analyzed on:  Acidity as Acetic Acid,Appearance, Chloride, Inorganic as Cl, Color Pt-Co, Density at 20°C,
Specific Gravity 20/20°C, Distillation, GC analysis and Water.

The deadline for reporting results is set on 11 December 2015. 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