FIELD: chemistry.
SUBSTANCE: oil sample is taken and divided into equal portions, each of which is heated at atmospheric pressure with condensation of vapour and separation of the condensate. For each subsequent portion of oil sample, the test temperature is raised by a constant value, after which the coefficient of absorption of light flux is determined, as well as the value of the evaporated mass as a difference between the mass of the sample before and after testing. The coefficient of evaporation is determined as the ratio of the evaporated mass of the oil sample to the remaining mass and the coefficient of resistance to thermal decomposition is determined from this ratio. A curve of the coefficient of resistance to thermal decomposition versus test temperature is plotted, and temperature stability is determined from the value of coefficient of resistance to thermal decomposition depending on the temperature.
EFFECT: increased information content of determination.
1 tbl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PROCEDURE FOR DETERMINATION OF TEMPERATURE STABILITY OF OIL LUBRICANT | 2009 |
|
RU2409814C1 |
| METHOD TO DETERMINE QUALITY OF LUBRICANT OILS | 2013 |
|
RU2528083C1 |
| PROCEDURE FOR DETERMINATION OF LUBRICATING PROPERTY OF OIL | 2010 |
|
RU2419791C1 |
| PROCEDURE FOR DETERMINATION OF TEMPERATURE STABILITY OF OIL LUBRICANT | 2009 |
|
RU2415422C1 |
| METHOD OF DETERMINING THERMAL OXIDATIVE STABILITY OF LUBRICANTS | 2008 |
|
RU2371706C1 |
| METHOD OF DETERMINING ANTIWEAR PROPERTIES OF OIL | 2011 |
|
RU2454653C1 |
| METHOD FOR DETERMINATION OF TEMPERATURE RESISTANCE OF LUBRICANT OILS | 2008 |
|
RU2366945C1 |
| METHOD OF DETERMINING RATIO BETWEEN PRODUCTS OF THERMAL DECOMPOSITION AND EVAPORATION OF LUBRICATING OILS DURING THERMOSTATING | 2020 |
|
RU2741242C1 |
| METHOD OF DEFINING OF OIL LUBRICITY | 2014 |
|
RU2567087C1 |
| METHOD OF DETERMINING THERMAL STABILITY OF LUBRICATING OIL | 2003 |
|
RU2240558C1 |
