Many accredited testing labs are required to participate at least twice a year in an international comparison test. Therefore we offer this laboratory comparison test for solid biofuels and secondary recovered fuels (SRF). This laboratory comparison test is also suitable for ENplus^® approved and listed testing labs.

The statistical evaluation of this comparison tests is carried out 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.

The ILC-Solid Biofuels & SRF interlaboratory comparison test is also listed in the international database for proficiency tests "eptis" http://www.eptis.bam.de.