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DE?? ??? ??? ??
?? 39??? ?? ??? ??? ??? ??? ??? ??.
?? ???? ?? ??? ??? ??? ??? ??? ??? ????: ?? ??, ?? ??, ??, ????, ???? ??, ?? ??, ????, ??? ??.
PL-PKN, ?? ??? ??? ??
GCC Standardization Organization, ?? ??? ??? ??
Taiwan Provincial Standard of the People's Republic of China, ?? ??? ??? ??
The Directorate General of Specifications and Metrology (DGSM) , ?? ??? ??? ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ??? ??? ??
Group Standards of the People's Republic of China, ?? ??? ??? ??
Professional Standard - Petrochemical Industry, ?? ??? ??? ??
International Truck and Engine Corporation (ITEC), ?? ??? ??? ??
American Society for Testing and Materials (ASTM), ?? ??? ??? ??
Natural Gas Processor's Association (NGPA), ?? ??? ??? ??
American Water Works Association (AWWA), ?? ??? ??? ??
Danish Standards Foundation, ?? ??? ??? ??
YU-JUS, ?? ??? ??? ??
Professional Standard - Public Safety Standards, ?? ??? ??? ??
- GA/T 105-1995 ?? ? ?? ? ???, ???, n-????, ???????, ???, ??????, n-???, ???????? ???? ? ???, ???, n-????? ?????
British Standards Institution (BSI), ?? ??? ??? ??
International Electrotechnical Commission (IEC), ?? ??? ??? ??
Jilin Provincial Standard of the People's Republic of China, ?? ??? ??? ??
North Atlantic Treaty Organization Standards Agency, ?? ??? ??? ??
Professional Standard - Energy, ?? ??? ??? ??
Universal Oil Products Company?(UOP), ?? ??? ??? ??
Professional Standard - Commodity Inspection, ?? ??? ??? ??