Home / Standards / GB/T 19842 GB/T 19842 Active Air-conditioning units for railbound vehicles 轨道车辆空调机组 Standard Type GBT ICS 27.200 CCS J73 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会