发明名称 |
A METHOD FOR THE DETERMINATION OF THE OXIDATIVE STABILITY OF A LUBRICATING FLUID |
摘要 |
The present invention concerns a method for the determination of the oxidative stability of a lubricating fluid, comprising the steps of: introducing a sample of the lubricating fluid under test in an reaction cell; introducing catalytic amounts of a catalyst to the reaction cell; heating the cell to the oxidation temperature of the lubricating fluid and maintaining this temperature; delivering oxygen containing gas at constant flow rate through the cell over the course of the reaction; delivering a gas comprising nitrogen dioxide at a constant flow rate through the cell for a specified time; applying and maintaining a specified vacuum on the reaction cell; allowing the mixture to react for a specified time; measuring the viscosity of the oxidized lubricating fluid. Additionally, the present invention describes an apparatus for the determination of the oxidative stability of a lubricating fluid. |
申请公布号 |
KR20090073151(A) |
申请公布日期 |
2009.07.02 |
申请号 |
KR20097007502 |
申请日期 |
2007.07.03 |
申请人 |
EVONIK ROHMAX ADDITIVES GMBH |
发明人 |
KINKER BERNARD;ROMASZEWSKI RAYMOND |
分类号 |
G01N33/30 |
主分类号 |
G01N33/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|