IAF - International Accreditation Forum IEC - International Electrotechnical Commission TÜRKAK - TÜRK AKREDİTASYON KURUMU CEN - European Committee for Standardization CENELEC - European Committee for Electrotechnical Standardization ISO - International Organization for Standardization EA - European Accreditation of Certification ILAC - International Laboratory Accreditation Cooperation WTO - World Trade Organization