What is Copper corrosion test?
This test serves as measure of corrosivity of fuel with copper, brass, or bronze parts of a fuel system. The copper strip is polished smoothly and immersed in the sample and put into a bomb. This is placed into a water bath which is maintained at the specified temperature for the specified time. The strip is removed from the sample, washed with iso-octane or normal heptane, and examined for evidence of etching or discoloration. The colour of the strip is compared with ASTM copper strip standards colour code. Significance: Copper corrosion limits provides assurance that difficulties will not be experienced in deterioration of the copper and copper alloy fittings and connections that are commonly used in many types of utilization, storage and transportation equipments. This test is required mainly for LPG, Naphtha, SKO, HSD, ATF and MS.
