ASTM D6203 Standard Test Method for Thermal Stability of Way Lubricants
5. Apparatus
5.1 Gravity Convection Electric Oven, capable of maintaining the samples at a test temperature of 100 +/- 2°C.
5.2 Calibrated Temperature Indicator, suitable for measuring and controlling the oven temperature.
5.3 Griffin Beakers, borosilicate glass, 100 mL.
5.4 Copper Test Specimens, in accordance with UNS C11000, 99.9 % pure electrolytic tough pitch copper, 6.4 mm in diameter by 7.6 cm in length (0.25 by 3.0 in.).
5.5 Steel Test Specimens, in accordance with AISI W1 1 % carbon steel, 6.4 mm in diameter by 7.6 cm in length (0.25 by 3.0 in.).
5.6 Silicon Carbide Abrasive, 320 grit with cloth backing.
5.7 Crocus Cloth.
5.8 Cincinnati Milacron Color Chart.
5.9 Facial Tissue.
6. Reagents
6.1 Reagent Grade Acetone. (Warning - Flammable, health hazard.)
6.2 Reagent Grade Heptane. (Warning - Flammable, health hazard.)
7. Preparation of Metal Rods
7.1 Handle the rods at all times using forceps, facial tissue, or suitable gloves.
7.2 Clean the iron and copper catalyst rods, whether new or previously used, prior to use. Clean the rods with the 320 grit silicon carbide abrasive cloth while rotating the rods in a drill chuck at 1700 to 1800 rev/min. Clean the surface until it has a bright copper or steel appearance. Discard rods when diameter is less than 6 mm.
7.3 Prepare surfaces finally with a crocus cloth. Remove all grind marks. Finish the rods to a lightly polished surface finish.
7.4 Wash the rods individually with acetone and air dry on completion of the polishing operation.
