Description: Characterization of a document in terms of the purpose or information it contains; Name: Document type
Description: classification of a document according to its purpose or the information it contains; Name: type of document
Description: the pressure whose value is equal to the algebraic difference between the absolute pressure and the atmospheric pressure. To this end, the overpressure for a pressure room can, for example, be negative with underpressure or under vacuum; Name: Max. overpressure of the shaft seal