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

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

Professional Standard - Urban Construction, ??????? ??? ??? ????? ??

Xinjiang Provincial Standard of the People's Republic of China, ??????? ??? ??? ????? ??

Taiwan Provincial Standard of the People's Republic of China, ??????? ??? ??? ????? ??

Professional Standard - Environmental Protection, ??????? ??? ??? ????? ??

中華人民共和國環(huán)境保護(hù)部, ??????? ??? ??? ????? ??

Professional Standard - Coal, ??????? ??? ??? ????? ??

CZ-CSN, ??????? ??? ??? ????? ??

AENOR, ??????? ??? ??? ????? ??

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

SE-SIS, ??????? ??? ??? ????? ??

Shandong Provincial Standard of the People's Republic of China, ??????? ??? ??? ????? ??

SCC, ??????? ??? ??? ????? ??

  • NS 4748:1991 Water analysis - Determination of chemical oxygen demand in water - Oxidation with dichromate - (CODcr)

Professional Standard - Aviation, ??????? ??? ??? ????? ??

  • HB/Z 5107.12-2004 ???? ??? ??? ?? ?? ?? ?? 12?: ??? ??? ?? ?????? ???? ?? ??? ?????? ?? ??
  • HB/Z 5107.13-2004 ???? ??? ??? ?? ?? ?? ?? 13?: ? ???? ?? ?????? ? ??????? ?? ??

Professional Standard - Geology, ??????? ??? ??? ????? ??

American Society for Testing and Materials (ASTM), ??????? ??? ??? ????? ??

PT-IPQ, ??????? ??? ??? ????? ??

工業(yè)和信息化部, ??????? ??? ??? ????? ??

Professional Standard - Machinery, ??????? ??? ??? ????? ??

Professional Standard - Nuclear Industry, ??????? ??? ??? ????? ??

Professional Standard - Non-ferrous Metal, ??????? ??? ??? ????? ??

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





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