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

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

• GB/T 36421-2018 ???? ??? ??? ??? ??

Group Standards of the People's Republic of China, ??? ??

• T/CHCIA 023-2024 ??? ???? ??? ?? ?? ??

Professional Standard - Commodity Inspection, ??? ??

• SN/T 3006-2011 ???? ??? ?? ??? ?? ?? ?? ???????

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

• ASTM F2252/F2252M-13(2018) ??? ???? ?? ?? ?? ?? ???? ???? ?? ???? ???? ?? ??

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