Description: nominal plane specified by a measurement standard to ensure comparability of results; Name: reference level
Description: horizontal plane for use as the datum for height measurement; Name: Reference plane
Description: The operating overpressure PS1+ is the maximum value of the operating overpressure defined from a safety point of view by the manufacturer of the system for the various components in relation to the atmospheric pressure (1 bar) at the maximum permissible temperature TS1; Name: Max. permissible overpressure PS1+ at TS1, room2