[EN 12792:2003, 59]:largest deformation of the sides of a duct or enclosure when subjected to a negative (caving) or positive (bulging) pressure. It is given as the measured difference in distance between a reference plane and the maximum point of … Continue reading →

[EN 12792:2003, 60]:ratio of the diverted flow to the sum of main flow and the diverted flow.

[EN 12792:2003, 62]:all the operations for the purpose of determining the value of the errors of a measuring instrument.