Home / Standards / GB/T 9486-1988 GB/T 9486-1988 Active Diesel engine--Exhaust smoke measurement method at steady state 柴油机稳态排气烟度及测定方法 Standard Type GBT ICS 13.040.40 CCS J90 Status 现行 Issue Date 1988-06-25 Implementation 1989-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A