| AENOR |
Asociación Española de Normalización y Certificación (Spania) |
| AFNOR |
Association française de normalisation (Frankrike) |
| ANSI |
American National Standards Institute (USA) |
| ASRO |
Asociathia de Standardizare din România (Romania) |
| BDS |
Bulgarian Institute for Standardisation (Bulgaria) |
| BSI |
British Standards Institution (Storbritannia) |
| CEN |
Comité Européen de Normalisation / European Committee for Standardization |
| CENELEC |
Comité Européen de Normalisation Electrotechnique |
| CYS |
Cyprus Organisation for Standardisation (Kypros) |
| DIN |
Deutsches Institut für Normung e.V. (Tyskland) |
| DS |
Dansk Standard (Danmark) |
| ELOT |
Hellenic Organization for Standardization (Hellas) |
| ETSI |
European Telecommunications Standards Institute |
| EVS |
Eesti Standardikeskus (Estland) |
| IEC |
International Electrotechnical Commission |
| IPQ |
Instituto Português da Qualidade (Portugal) |
| ISO |
International Organization for Standardization |
| IST |
Staðlaráð Íslands (Island) |
| ITU |
International Telecommunication Union |
| ILNAS |
Institut Luxembourgeois de la normalisation, de l'accreditation, de la sécurité et qualité des produits et services (Luxembourg) |
| LST |
Lietuvos standartizacijos departamentas (Litauen) |
| LVS |
Latvijas standarts (Latvia) |
| MSA |
Malta Standards Authority (Malta) |
| MSZT |
Magyar Szabványügyi Testület (Ungarn) |
| NBN |
Bureau de Normalisation/Bureau voor Normalisatie (Belgia) |
| NEN |
Nederlands Normalisatie-instituut (Nederland) |
| NSAI |
National Standards Authority of Ireland (Irland) |
| ÖN |
Österreichisches Normungsinstitut (Østerrike) |
| PKN |
Polski Komitet Normalizacyjny (Polen) |
| SFS |
Suomen Standardisoimisliitto (Finland) |
| SIS |
Swedish Standards Institute (Sverige) |
| SIST |
Slovenski institut za standardizacijo (Slovenia) |
| SNV |
Schweizerische Normen-Vereinigung (Sveits) |
| SUTN |
Slovenský ústav technickej normalizácie (Slovakia) |
| UNI |
Ente Nazionale Italiano di Unificazione (Italia) |
| UNMZ |
Úrad pro technickou normalizaci, metrologii a státní zkuebnictví (Tsjekkia) |