AFNOR: French Organization for Standardization ASI: Austrian for Organization Standardization ASRO: Romanian Standards Association BDS: Bulgarian Institute for Standardization BSI: British Standards Institution  CEN: the European Committee for Standardization CENELEC: responsible for European standardization in the area of electrical engineering CYS: Cypriot Organization for Standardization DIN: German Organization for Standardization DS: Danish Standards Foundation ELOT: Greek (The Hellenic) Organization for Standardization EVS: Estonian Centre for Standardization HZN: Croatian Standards Institute IEC: International Standards and Conformity Assessment for all electrical, electronic and related technologies ILNAS: Organization for Standardization Luxembourg IPQ: Portuguese Quality Institute ISO: International Organization for Standardization ISRSM: Standardization Institute of the Republic of North Macedonia ISS: Institute for Standardization of Serbia IST: Icelandic Standards  LST: Lithuanian Standards Board LVS: Latvian Standards MCCAA: The Malta Competition and Consumer Affairs Authority MSZT: Hungarian Standard Institution NBN: Belgian Standardization Bureau NEN: Dutch Normalization Institute NSAI:Standards Authority of Ireland PKN: Polish Committee for Standardization  SFS: Finnish Standards Association SIS: Swedish Institute for Standards SIST: Slovenian Institute for Standardization   SN: Standards Norway SNV: Swiss Association for Standardization  TSE: Turkish Standards Institution UNE: Spanish Standardization Association UNI: Italian Organization for Standardization UNMS SR: Slovak Office of Standards, Metrology and Testing UNMZ: Czech Office for Standards, Metrology and Testing