Home / Standards / GB/T 33102-2025 GB/T 33102-2025 Active Methane 甲烷 Standard Type GBT ICS 71.100.20 CCS G 86 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A