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

Japanese Industrial Standards Committee (JISC), ?? ? ?? ???? ???? ??? ??????

BE-NBN, ?? ? ?? ???? ???? ??? ??????

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

國家市場監(jiān)督管理總局、中國國家標(biāo)準(zhǔn)化管理委員會, ?? ? ?? ???? ???? ??? ??????

  • GB/T 23349-2020 ??? ??, ???, ??, ? ? ?? ?? ??
  • GB/T 39560.5-2021 ?? ? ?? ??? ?? ?? ?? 5?: AAS, AFS, ICP-OES ? ICP-MS ??? ?? ??? ? ?? ??? ???, ?, ??, ??? ??? ? ? ??

German Institute for Standardization, ?? ? ?? ???? ???? ??? ??????

Professional Standard - Ferrous Metallurgy, ?? ? ?? ???? ???? ??? ??????

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

PL-PKN, ?? ? ?? ???? ???? ??? ??????

Swedish Institute for Standards, ?? ? ?? ???? ???? ??? ??????

Standards Norway, ?? ? ?? ???? ???? ??? ??????

Lithuanian Standards Office , ?? ? ?? ???? ???? ??? ??????

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

Danish Standards Foundation, ?? ? ?? ???? ???? ??? ??????

Ente Nazionale Italiano di Unificazione, ?? ? ?? ???? ???? ??? ??????

Association Francaise de Normalisation, ?? ? ?? ???? ???? ??? ??????

American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), ?? ? ?? ???? ???? ??? ??????

Indonesia Standards, ?? ? ?? ???? ???? ??? ??????

HU-MSZT, ?? ? ?? ???? ???? ??? ??????





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