GB/T 6538-2022
ActiveDetermination of apparent viscosity of engine oils—Using the cold-cranking simulator
发动机油表观黏度的测定 冷启动模拟机法
Application Summary AI generated
This standard specifies a test method for measuring the apparent viscosity of engine oils under low-temperature, high-shear conditions using a cold-cranking simulator (CCS). It is applied in the petroleum industry to evaluate the low-temperature cranking performance of engine oils, ensuring they provide adequate lubrication during cold engine starts in automotive and heavy-duty equipment. The test is critical for quality control and formulation development of multigrade oils used in passenger cars, trucks, and other internal combustion engines.
Related Standards
GB/T 7631.2-2003
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
Petroleum products--Lubricatingoils and additives--Determination of sulphated ash
GB/T 7631.16-1999
Lubricants and related products(class L)--Classification--Part 16:Family P (Pneumatic tools)
GB/T 12583-1998
Standard test method for measurement of extreme-pressure properties of lubricating fluids(four-ball method)
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)
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.