COPPER STRIP CORROSION BY LIQUEFIED PETROLEUM GASES: ASTM D1838
EXPLANATION
Copper corrosion limits provide 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 equipment. For an equivalent copper strip test applicable to less volatile petroleum products Test Method ASTM D130 may be used.
TEST SUMMARY
A polished copper strip is immersed in approximately 100 mL of the sample and exposed at a temperature of 37.8° C for one hour in a cylinder of suitable working pressure. At the end of this period, the copper strip is removed and rated as one of the four classifications of the ASTM Copper Corrosion Standards.
TEST PRECISION
No generally accepted method for determining precision or bias of ordinal classification data is currently available.
