Home / Standards / GB/T 12578-1990 GB/T 12578-1990 Active Lubricating oils--Determination of flow ability--U-tube method 润滑油流动性测定法 (U 形管法) Standard Type GBT ICS 75.100 CCS E30 Status 现行 Issue Date 1990-12-14 Implementation 1991-10-01 Responsible Dept 国家标准委 Drafting Unit N/A