A number of delegations were concerned that the tentative recommendations have been made on the assumption that all the analyte components included within a sum or components approach are equally weighted in terms of risk and the recommendations do not take into account instances where one (or more) analytes included within such an approach are ‘more important’ than the others. The issue of how to take into account ‘analyte weighting’ needs to be discussed and agreed by the eWG/CCMAS.