Many accredited testing labs are required to participate at least twice a year in an international comparison test. Therefore we offer since 2016 besides the comparison tests in the field of fuel testing for solid biofuels and solid SRF "ILC-solid biofuels & SRF" (formerly known as ICT-FT) a laboratory comparison test exclusively for wood pellets. This laboratory comparison test is also especially 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-Pellets (formerly known as ICT-PT) interlaboratory comparison test is also listed in the international database for proficiency tests "eptis" http://www.eptis.bam.de.