This part of the European Standard defines the basic terminology and symbols to be used for pressure
equipment addressed by the European Directive 97/23/EC with regard to pressure, temperature, volume and
nominal size.
For the purpose of this standard "pressure equipment" means vessel, piping, pressure accessory and safety
accessory.
Relations between pressure quantities defined in this standard are shown in Figures 4 and 5 of EN 764-7.
These figures also illustrate relations between these pressures and those related to the safety accessory.
NOTE 1 In addition to terms used in the three official CEN languages (English, French and German), this European Standard
gives in annex A the equivalent terms in the Danish, Dutch, Finnish, Greek, Icelandic, Italian, Norwegian, Portuguese, Spanish, and
Swedish languages; these are published under the responsibility of the respective member bodies for those countries. However,
only the terms and definitions given in the official languages can be considered as EN terms and definitions.
NOTE 2 This part of the European Standard does not stipulate the units to be used for the quantities defined. These are to be
taken from the other parts of the standard.
Für Druckgeräte und drucktragende Baugruppen, die der Europäischen Richtlinie 97/23/EG (Druckgeräte-Richtlinie) unterliegen, werden die grundlegenden Begriffe und Symbole für Druck, Temperatur, Volumen und Nennweite festgelegt. Im Anhang sind die gleichlautenden Benennungen in den meisten europäischen Sprachen gegenübergestellt.