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DE???? ????
?? 19??? ???? ????? ??? ??? ??.
?? ???? ???? ????? ??? ??? ??? ????: ??, ?? ? ???, ?? ? ???? ??, ?? ??.
Guangdong Provincial Standard of the People's Republic of China, ???? ????
International Organization for Standardization (ISO), ???? ????
Group Standards of the People's Republic of China, ???? ????
International Dairy Federation (IDF), ???? ????
SCC, ???? ????
VN-TCVN, ???? ????
Association Francaise de Normalisation, ???? ????
German Institute for Standardization, ???? ????
GOSTR, ???? ????
GSO, ???? ????
Korean Agency for Technology and Standards (KATS), ???? ????
Professional Standard - Petrochemical Industry, ???? ????