Home / Standards / GB/T 3863-2025 GB/T 3863-2025 Active Industrial oxygen 工业氧 Standard Type GBT ICS 71.100.20 CCS G86 Status 现行 Issue Date 2025-08-01 Implementation 2026-02-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A