Dear colleagues, I noticed the chapter about uncertainties. It is good that there is one, but I find it relativly weak in contrast to the rest of the paper. In my opinon it has to be stated that every quantity has to have an assigned uncertainty and the model to obtain it, is the ISO Guide GUM. The uncertainty with its link to the propability is the basis for the judgement how to proceed with a given result. Good luck for your work, kind regards Annette Roettger