Sampling of bulk goods - even if done professional in accordance to the appropriate regulations –  is a challenging task. Though practice and experience often don’t ensure representativeness of the taken samples. Within this proficiency test “sampling of wood pellets according ISO 18135” each participant is able to prove his own performance and accuracy.

The statistical evaluation of the sampling will be done on basis of fine content and particle size distribution in accordance to ISO/IEC 17043 (mean value, standard deviation, outlier according to Grubbs, outlier according to Cochran, z-score) as well as repeatability and reproducibility.

This ICT-S laboratory comparison test is also listed in the international database for proficiency tests "eptis" http://www.eptis.bam.de.