ISO (International Organization for Standardization)
CEN Centro Europeo de Normalización: CEN is a major provider of European Standards and technical specifications. It is the only recognized European organization according to Directive 98/34/EC for the planning, drafting and adoption of European Standards in all areas of economic activity with the exeption of electrotechnology (CENELEC) and telecommunication (ETSI).
CENELEC - European Committee for Electrotechnical Standardization