condition of measurement, out of a set of conditions that includes the same measurement procedure, same location, and replicate measurements on the same or similar objects over an extended period of time, but may include other conditions involving changes
NOTE 1 The changes can include new calibrations, calibrators, operators, and measuring systems.
NOTE 2 A specification for the conditions should contain the conditions changed and unchanged, to the extent practical.
NOTE 3 In chemistry, the term “inter-serial precision condition of measurement” is sometimes used to designate this concept.