石油产品和润滑剂 中和值 电位滴定法

[中文适用范围]： 给出了可溶于或几乎可溶于甲苯和2-丙醇混合物的产品中酸性成分的测定方法。 它适用于测定水中解离常数大于10的酸。 该方法可用于指示油在氧化条件下使用过程中发生的相对变化，无论所得油的颜色或其他性质如何。 轴承腐蚀与酸碱值之间的一般关系尚不清楚。 [外文原描述]： Gives a method for the determination of acidic constituents in products soluble or nearly soluble in mixtures of toluene and propan-2-ol. It is applicable for the determination of acids whose dissociation constants in water are greater than 10 -9 . The method may be used to indicate relative changes that occur in an oil during use under oxidizing conditions regardless of the colour or other properties of the resulting oil. No general relationship between bearing corrosion and acid or base numbers is known.