Home / Standards / GB/T 46850-2025 GB/T 46850-2025 Upcoming Guide on design and selection of furnaces and burners for gas fired boilers 燃气锅炉炉膛及燃烧设备设计选型导则 Standard Type GBT ICS 27.060.30 CCS J98 Status 即将实施 Issue Date 2025-12-31 Implementation 2026-07-01 Responsible Dept 国家标准委 Drafting Unit N/A