Description: Highest relative humidity to which a device can be exposed without permanent restriction of the operating behavior; Name: relative humidity (maximum)
Description: highest relative humidity to which a device may be subject without permanent impairment of operating characteristics; Name: max. air humidity
Description: measure of the increase in the liquid to be pumped, water, on a pipe connected vertically to the pump when the flow rate is zero. related to the operation of the pump at 1,450 rpm with the current impeller size; Name: pump shut-off head for actual impeller diameter at 1450/min