How to detect moisture in lubricating oil

One is GB/T260, and the other is GB/T7600. The 260 method is a test method often used for lubricating oil moisture testing, and 7600 is a test used for power oils such as transformer oil. method.

The test methods are different, and the results are also different. If the 260 test result is less than 0.03, it is regarded as a trace (meaning none). The 7600 is originally a trace moisture test and can be accurate to 0.1 ppm. , even a very small amount of moisture can be detected.

Moisture refers to the water content in the oil, expressed as a percentage. In oil products, most varieties only allow traces (water content below 0.3) of moisture, and some oil products do not allow moisture. Because water can emulsify lubricating oil, decompose additives, promote oxidation of oil and enhance the corrosion of machinery by low-molecular organic acids.

Extended information:

Moisture is one of the important reasons for lubricating oil failure and causing mechanical corrosion and wear. The countermeasures are to prevent. Monitoring the moisture content can avoid equipment failure. damage.

Strictly speaking, there is no warning value for water content, but it should be as low as possible. Use waterproof and moisture-proof accessories such as dry respirators, use high-efficiency seals, etc. When water is found, remove the water in time and use centrifugation. Type oil-water separator and vacuum water removal equipment are of great significance for extending the service life of lubricating oil and equipment.