GB/T 4945-2002
ActiveStandard test method for acid and base number of petroleum products and lubricants by colour-indicator titration
石油产品和润滑剂酸值和碱值测定法(颜色指示剂法)
Application Summary AI generated
This standard specifies a colour-indicator titration method for determining the acid and base numbers of petroleum products and lubricants. It is applied in the petroleum industry for quality control and condition monitoring of oils, such as engine oils, hydraulic fluids, and transformer oils, to assess oxidation, contamination, or additive depletion. The method is used in laboratories for routine testing of new and in-service lubricants to ensure performance and equipment protection.
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