Control of external corrosion on buried/submerged metallic piping systems and other structures. Use of electrically insulating coatings, electrical isolation, and cathodic protection as corrosion control methods for existing bare, existing coated, and new piping systems. Interference currents. Historical Document 1976
THE MOST COMMONLY USED TESTS TO EVALUATE ATMOSPHERIC SURFACE COATINGS ARE: (1) ATMOSPHERIC EXPOSURE: (2) COATING PROPERTIES SUCH AS CHEMICAL, ABRASION, AND TEMPERATURE RESISTANCE: AND (3) ACCELERATED TESTS SUCH AS THE CARBON ARC RADIATION-WATER SPRAY, INTERMITTENT IMMERSION, AND SALT SPRAY (FOG) TESTS.