Home / Standards / GB/T 24212-2025 GB/T 24212-2025 Active Methylnaphthalene oil 甲基萘油 Standard Type GBT ICS 71.080 CCS G18 Status 现行 Issue Date 2025-04-25 Implementation 2025-08-01 Responsible Dept 国家标准委 Drafting Unit N/A