FIELD: investigating or analyzing of materials.
SUBSTANCE: method comprises infrared spectroscopy of the sample of oil to be investigated, determining absorption band of the spectrum, finding the information characteristic of oil as a difference between the optical densities of in absorption bands of 1731 cm-1 and 2000 cm-1, and determining type of the oil from the value of the difference.
EFFECT: reduced labor consumption.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MINERAL MOTOR OIL POUR-POINT TEMPERATURE DETERMINATION FOR AUTOMOTIVE ENGINEERING | 2006 |
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RU2329477C1 |
| METHOD FOR DETERMINING AMOUNT OF DETERSOL-140 ADDITIVE IN MOTOR OILS FOR AUTOMOBILES | 2006 |
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| METHOD OF DETERMINATION OF ALKALI NUMBER OF MOTOR OILS FOR AUTOMOTIVE ENGINES | 2007 |
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| METHOD OF DETERMINING AMOUNT OF MERCAPTOBENZOTHIAZOLE ADDITIVES IN OIL FOR AVIATION EQUIPMENT | 2012 |
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| MOTOR OIL | 2000 |
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| MOTOR OIL | 2002 |
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|
RU2352617C1 |
| LOW-TEMPERATURE LUBRICATING OIL | 1996 |
|
RU2106393C1 |
| FUEL COMPOUND | 2007 |
|
RU2326156C1 |
| METHOD FOR PRODUCING DEPRESSANT AND DEPRESSANT OBTAINED BY THIS METHOD | 2023 |
|
RU2808117C1 |
