mõjurite äärmuslikud väärtused transportimisel, mille juures mõõtevahend veel ei kahjustu sedavõrd, et edaspidisel töötamisel tugitingimustel ei vasta talitluskarakteristikutele, extreme values which an influence quantity can assume during transport without damaging the measuring instrument so that it no longer meets its performance requirements when it is subsequently operated under reference conditions