values related to an item or a process obtained by direct observation NOTE 1 - Values referred to could be events, time instants, time intervals, etc. NOTE 2 - When data is recorded all relevant conditions and criteria should be stated. Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=191-14-15
values related to an item or a process obtained by direct observation NOTE 1 - Values referred to could be events, time instants, time intervals, etc. NOTE 2 - When data is recorded all relevant conditions and criteria should be stated.