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: extent of protection provided by an enclosure against access to hazardous parts, against ingress of solid foreign objects and/or ingress of water and verified by standardized test methods, expressed as a IP rating; Name: degree of protection