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PL-PKN, ??? ???

Korean Agency for Technology and Standards (KATS), ??? ???

Group Standards of the People's Republic of China, ??? ???

International Electrotechnical Commission (IEC), ??? ???

RU-GOST R, ??? ???

British Standards Institution (BSI), ??? ???

GSO, ??? ???

German Institute for Standardization, ??? ???

American Society for Testing and Materials (ASTM), ??? ???

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ??? ???

Spanish Association for Standardization (UNE), ??? ???

International Organization for Standardization (ISO), ??? ???

SCC, ??? ???

U.S. Military Regulations and Norms, ??? ???

Association Francaise de Normalisation, ??? ???

IEEE - The Institute of Electrical and Electronics Engineers@ Inc., ??? ???

North Atlantic Treaty Organization Standards Agency, ??? ???

Professional Standard - Meteorology, ??? ???





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