Below you will find the final reports of our inter-laboratory comparisons from 2003 onwards. Since 2005, the evaluation of the results has been carried out according to DIN 38402 - 45: 2014 using robust statistical methods. Zu scores are used to evaluate the results.
Since 2007, it has been necessary to process 3 replicates. On the one hand, this leads to a more extensive workload, but on the other hand, it increases the significance of the evaluation.
