This standard specifies test methods for determining the friction properties of friction materials. This standard is suitable for determining the friction coefficient, wear rate and energy load allowable values of sintered test pieces under lubricated conditions.
JB/T 7909-1999 history
2011JB/T 7909-2011 Bench test method for frictional characteristics of sintered metal friction material run in lubricants
1999JB/T 7909-1999 Bench test method for frictional characteristics of sintered metal friction materials run in lubricants