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DE?? ???
?? 21??? ?? ???? ??? ??? ??.
?? ???? ?? ???? ??? ??? ??? ????: ?? ??, ?? ??, ?? ? ??.
國家市場監督管理總局、中國國家標準化管理委員會, ?? ???
Japanese Industrial Standards Committee (JISC), ?? ???
European Committee for Standardization (CEN), ?? ???
British Standards Institution (BSI), ?? ???
Lithuanian Standards Office , ?? ???
SCC, ?? ???
Danish Standards Foundation, ?? ???
German Institute for Standardization, ?? ???
Association Francaise de Normalisation, ?? ???
GSO, ?? ???
Korean Agency for Technology and Standards (KATS), ?? ???
American Society for Testing and Materials (ASTM), ?? ???