Proficiency Test on Bitumen started

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

Download the instructions for iis17F02 here: The letter of instructions and the report form here.

Summary of this proficiency test:

On 22 November 2017 the proficiency test on Bitumen started with  50 participants from 40 different countries. Enclosed to the sample is 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 enter the date of receipt and press the "save date" button.

The sample can be analyzed on: Density at 25°C, Dynamic Viscosity at 60°C, Flash Point COC, Fraass Breaking Point, Kinematic Viscosity at 135°C, Penetration at 25°C, Penetration Index, RTFOT at 163°C, Softening Point Ring and Ball, Solubility in Xylene.

The deadline for reporting results is set on 29 December 2017. A laboratory that reports test results after the 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