DIN EN 1127-1:2011-10

CEN and CENELEC are producing a set of standards to assist designers, manufacturers and other interested bodies to interpret the essential safety requirements in order to achieve conformity with European Legislation. Within this series of standards CEN has undertaken to draw up a standard to give guidance in the field of explosion prevention and protection, as hazards from explosions are to be considered in accordance with EN ISO 12100. In accordance with EN ISO 12100, this standard is a type A standard. This standard describes the basic concepts and methodology of explosion prevention and protection. CEN/TC 305 has a mandate in this area to produce B-type, and C-type standards, which will allow verification of conformity with the essential safety requirements. Explosions can occur from: a) materials processed or used by the equipment, protective systems and components; b) materials released by the equipment, protective systems and components; c) materials in the vicinity of the equipment, protective systems and components; d) materials of construction of the equipment, protective systems and components. Since safety depends not only on equipment, protective systems and components but also on the material being handled and its use, this standard also includes aspects related to the intended use and foreseeable misuse, that is, the manufacturer should consider in which way and for which purpose the equipment, protective systems and components will be used and take this into account during their design and construction. This is the only way hazards inherent in equipment, protective systems and components can be reduced. This standard may also serve as a guide for users of equipment, protective systems and components when assessing the risk of explosion in the workplace and selecting the appropriate equipment, protective systems and components. The European Standard has been prepared by Technical Committee CEN/TC 305, Working Group 4 "Terminology and methodology" (secretariat: DIN, Germany). Regarding the German collaboration, the responsible Working Committee is NA 095-02-06 AA "Terminologie, Methodik" ("Terminology and methodology") of the Safety Design Principles Standards Committee (NASG) at DIN.