National standards for lubricating oils

2012-06-02View Original

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I would like to ask which teacher is aware of the detailed requirements of national standards for lubricants, such as the requirements regarding the dynamic viscosity and viscosity index for grades 150N, 250N, 350N...

Reply #22012-06-02

It would be best if it could be more comprehensive and detailed. Thank you very much, teachers...

Reply #32012-06-04

GB/T 12578—1990 Method for determining the fluidity of lubricating oils (U-tube method) GB/T 12579—2002 Method for determining the foaming properties of lubricating oils GB/T 12583—1998 Method for determining the extreme pressure properties of lubricants (four-ball method) GB/T 12709—1991 Method for determining the aging properties of lubricating oils (Kensuke residue method)

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National standards for lubricating oils

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