Home / Standards / GB/T 46423-2025 GB/T 46423-2025 Active Technical specification for recovery of venting gas for transmission pipelines 长输天然气管道放空回收技术规范 Standard Type GBT ICS 75.200 CCS E 98 Status 现行 Issue Date 2025-10-05 Implementation 2026-05-01 Responsible Dept 国家标准委 Drafting Unit N/A