Proficiency Test on Hydraulic Oil (Used) started

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

Download the instuctions for iis16L07 here: The letter of instructions and the  report form.

Summary of this proficiency test:

On 26 October 2016 the proficiency test on Hydraulic Oil (Used) started with 57 participants from 55 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).

Please confirm sample receipt as soon as you have received and checked the contents of the sample package via Please give date of receipt and press "save/button".

The samples can be analyzed on: Total Acid Number, Density @ 15°C, Flash Point PMcc,  Kinematic viscosity @ 40°C, Kinematic viscosity @ 100°C, Viscosity Stabinger at 40°C and at 100°C, Sulphur, Water, Level of Contaminatin, Al, Ba, Cr, Cu, Fe, Pb, Li, Mg, Mn, Mo, Ni, Na, Si, Ag, Sn, Ti, V, Ca, P and Zn.

The deadline for reporting results is set on 2 December 2016. A laboratory that reports test 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 should be reported via our internet based results reporting platform. A login and a password can be requested via email to