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???? ??

?? 4??? ???? ??? ??? ??? ??.

?? ???? ???? ??? ??? ??? ??? ????: ???? ??, ????.

German Institute for Standardization, ???? ??

• DIN 51794:2003 ?? ???? ??, ?? ?? ??
• DIN 51794:1978 ??? ?? ???? ??? ??? ??

API - American Petroleum Institute, ???? ??

• API PUBL 26-60025-1976 ?? ? ????? ?? ??? ? ???

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

• KS M 1960-2002 ??? ???, ???? ??? ??, ?? ???????

??:   ????, ???? ??, ???? ??, ???? ??, ???? ??, ? ????, ???? ??, ???? ??, ????, ???? ???, ???? ??, ????? ???? ??, ????? ???? ??, ???? ??, ?? ????, ????+, ?? ???? ???, ????? ???? ??, ??? ???? ??.