DF: the set of operations that establishes, under specified conditions, the relationship between values indicated by a measuring system and the corresponding known values of the measurand
DF: the set of operations that establishes, under specified conditions, the relationship between values indicated by a measuring system and the corresponding known values of the measurand
DF: the set of operations that establishes, under specified conditions, the relationship between values indicated by a measuring system and the corresponding known values of the measurand