Copper Strip Corrosion Test App. (Digital): The Copper Strip Tarnish Test assesses the relative degree of corrosivity of petroleum products, including aviation fuels, automotive gasoline, natural gasoline, solvents, kerosene, diesel fuel, distillate fuel oil, lubricating oil and other products. A polished copper strip is immersed in 30 mL of sample at elevated temperature. After the test period, the strip is examined for evidence of corrosion and a classification number from 1 4 is assigned based on a comparison with the ASTM Copper Strip Corrosion Standards. Supplied with One no.each S.S. BOMB (Copper Corrosion test vessel, stainless steel withÂ O rings, screw type cap, for use up to 100 psi), Glass Test Tube, Copper strip (Pack of 3) Indian make laminated corrosion comparison chart and Glass Thermometer.