Method for detecting water content of oil product and device for detecting water content of lubricating oil

The invention discloses an oil product water content detection method and a lubricating oil water content detection device, and the method comprises the following steps: measuring the mass of an oil product with the volume of L1 and the maximum allowable water content as M1; determining the mass M2 of the detection container loaded with the oil product; setting the detection counterweight mass as M3; the detection counterweight and the detection container are arranged in the detection device; during detection, the detection device is connected with the sampling port, and a test oil product with the volume of L1 is taken and put into the detection container; whether the oil product is qualified or not is detected by determining whether the sum of the actual mass M4 of the tested oil product with the volume of L1 and the mass M2 of the detection container is larger than the mass M3 of the detection balance weight, and according to the method, the final result can be judged according to whether the detection bal