This standard establis es general recommendations for making time interval measurements, using appropriate measurement means, such as mechanical and electrical stopwatches, time interval meters with alarm and time switches, with the objective of achieving correct manipulation of these media, as well as higher quality results in measurements.
NC 90-11-12-1986 history
1986NC 90-11-12-1986 Metrological Assurance. Time Delay Measurement. Measurement Methods and Means