International Electrotechnical Commission

International Telecommunication Union Telecommunication Standardization Sector

Joint Technical Committee

European Standardization System

European Committee for Electrotechnical Standardization

European Telecommunications Standards Institute

L'Association Française de Normalisation

Ente Nazionale Italiano di Unificazione

British Standards Institution

American National Standards Institute

Deutsches Institut für Normung

Standards Australia

Österreichisches Normungsinstitut

Associação Brasileira de Normas Técnicas

Standards Council of Canada