TY - RPRT TI - NBS papers on underground corrosion of steel piling 1962-1971 : corrosion of steel pilings in soil, corrosion evaluation of steel test piles exposed to permafrost soils, performance of steel pilings in soils, polarization measurements as related to corrosion of underground steel piling AU - Schwerdtfeger, W J AU - Romanoff, Melvin PY - 1972 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS MONO 127 DO - 10.6028/NBS.MONO.127 ER -