Home / Standards / GB/T 17805-2025 GB/T 17805-2025 Upcoming Measurement of intake air or exhaust gas flow of diesel engines 柴油机进、排气流量的测量 Standard Type GBT ICS 17.120;27.020 CCS J 90 Status 即将实施 Issue Date 2025-12-02 Implementation 2026-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A