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DE?? ??
?? 12??? ?? ??? ??? ??? ??.
?? ???? ?? ??? ??? ??? ??? ????: ?? ??, ??, ???, ??, ?? ? ?? ??? ??, ??? ??, ?? ?? ??, ?? ?? ??.
Group Standards of the People's Republic of China, ?? ??
Shanxi Provincial Standard of the People's Republic of China, ?? ??
Fujian Provincial Standard of the People's Republic of China, ?? ??
Professional Standard - Environmental Protection, ?? ??
Association Francaise de Normalisation, ?? ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ??