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DE??? ???? ??
?? 16??? ??? ???? ??? ??? ??? ??.
?? ???? ??? ???? ??? ??? ??? ??? ????: ?? ? ?? ??, ??, ?? ? ?? ??, ?? ???, ???, ???, ???, ??? ? ??? ??, ?? ??.
American Society for Testing and Materials (ASTM), ??? ???? ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ??? ???? ??
American National Standards Institute （ANSI), ??? ???? ??
British Standards Institution (BSI), ??? ???? ??
Japanese Industrial Standards Committee (JISC), ??? ???? ??
Gosstandart of Russia, ??? ???? ??
Professional Standard - Electron, ??? ???? ??