THERMAL STABILITY OF WAY LUBRICANTS: ASTM D6203
EXPLANATION
Thermal stability characterizes physical and chemical property changes, which may adversely affect an oil's lubricating performance. This test method evaluates the thermal stability of hydrocarbon based way lubricant in the presence of copper and steel rods at 100° C. Deposits and rod colors are the evaluation criteria. No correlation of this test to field service has been made. This test method is intended for use in qualifying a way lubricant, rather than for quality control or condition monitoring purposes.
TEST SUMMARY
A beaker containing the test oil, and copper and steel rods are placed in a gravity convection electric oven for 24 h at a temperature of 100° C. At the end of this time, the copper and steel rods are visually rated for discoloration using the Cincinnati Milacron Color chart and the beaker is visually evaluated for deposits.
TEST PRECISION
The precision and bias of this test method are under study.
