Home / Standards / SN/T 5579-2023 SN/T 5579-2023 Active 炭素材料石墨化度的测定 X射线衍射法 Standard Type SN ICS N/A CCS N/A Status Active Issue Date 2023-05-05 Implementation 2023-12-01 Centralized Committee 海关总署 Issuing Authority 海关总署