In 1922 a field burial program was initiated by the National Bureau of Standards to determine the corrosive effect of different soils upon the commonly used commercial ferrous pipe materials. During the 30-year period between 1922 and 1952, data were obtained on approximately 37,000 specimens, representing more than 330 varieties of metals, alloys, and protective coatings after exposures up to 17 years at 128 test locations throughout the United States. The results of these extensive investigations have been presented in many publications and assembled in the National Bureau of Standards Circular 579.1 

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