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一、污染水平的表示方法为了确定油液的清洁程度,对污物(主要是固体污物)数量应有统一的表示方法。常用的固体颗粒污物数量表示方法有以下几种: 1.总体形式 a、重量:单位容积油液中的污物颗粒的重量,单位为毫克/升。 b、重量百分比:单位重量油液中含百万分之几的颗粒重量,可用PPM(重量)表示。例如,每千克油液中含有污染颗粒的毫克数。 c、体积百分比:单位体积油液中含百万分之几的颗粒体积,可用PPM(体积)表示。例如,每千升油液中含有污染颗粒的毫升数。
First, the expression of pollution levels In order to determine the oil level of cleanliness, the amount of dirt (mainly solid dirt) should have a unified representation. Commonly used solid particles amount of dirt expressed in the following ways: 1. Overall form a, weight: unit volume of oil in the weight of dirt particles, in milligrams / liter. b, the weight percentage: Unit weight The oil contains particles in parts per million by PPM (weight) said. For example, the number of milligrams of contaminated particles per kilogram of fluid. c, the volume percentage: Unit volume The oil contains a few parts per million of the particle volume, available PPM (volume) said. For example, milliliters of contaminated particles per 1000 liters of fluid.