GB/T 12583-1998
ActiveStandard test method for measurement of extreme-pressure properties of lubricating fluids(four-ball method)
润滑剂极压性能测定法(四球法)
Application Summary AI generated
This standard specifies the four-ball test method for evaluating the extreme-pressure (EP) properties of lubricating fluids, such as gear oils and hydraulic fluids. It is applied in the petroleum industry and by lubricant manufacturers to determine a fluid's load-carrying capacity and anti-weld performance under high-pressure sliding contact. The method is used for quality control, product development, and specification compliance testing in industrial machinery and automotive applications.
Related Standards
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Lubricants，industrial oils and related products(class L)--Classification--Part 2: Family H(Hydraulic systems)
GB/T 7631.17-2003
Lubricants，industrial oils and related products(class L)--Classification--Part 17:Family E(Internal combustion engine oils)
GB/T 12579-2002
Determination of foaming characteristics of lubricating oils
GB/T 2433-2001
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GB/T 7631.16-1999
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GB/T 7631.15-1998
Lubricants and related products(class L)--Classification--Part 15:Family N (Insulating liquids)
GB/T 7631.14-1998
Lubricants and related products(class L)--Classification--Part 14:Family U (Heat treatment)
GB/T 17477-1998
Axle and manual transmission lubricant viscosity classification
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