昆仑12号航空液压油检测项目

质量指标

试验方法

昆仑12号航空液压油外观

红色透明液体

目测

运动粘度，mm2/s

150℃                                                                            不小于

50℃                                                                              不小于

昆仑12号航空液压油在-40℃                                                                             不大于

-54℃                                                                             不大于

3

12

600

3000

GB/T 265

铜片腐蚀度（70℃，24h），级                                不大于

通过

①

初馏点，℃                                                                    不低于

230

GB/T 255

酸值，mgKOH/g                                                          不大于

0.05

GB/T 264

闪点（开口），℃                                                        不低于

100

GB/T 267

昆仑12号航空液压油凝点，℃                                                                        不高于

-65

GB/T 510

水分，mg/kg                                                                不大于

无

GB/T 260

机械杂质，%                                  

无

GB/T 511

水溶性酸或碱

无

GB/T 259

低温稳定性（-60±1℃，72h）

通过

②

液相锈蚀(蒸馏水A法)

无

GB/T 11143

超声波剪切（40℃运动粘度下降率），%不大于

16

SH/T 0505

氧化安定性(160℃,100h)

运动粘度50℃变化率,%                                      

昆仑12号航空液压油酸值,mgKOH/g                                                             不大于

金属腐蚀度,mg/cm2

钢片                                                                                不大于

铜片                                                                                不大于

铝片                                                                                不大于

镁片                                                                                不大于

-5～+20

0.3

±0.1

±0.2

±0.1

±0.2

SH/T 0208

昆仑12号航空液压油密度(20℃),kg/m3                                                        不大于

800～900

GB/T 1884