A statement on “Minimum Requirements for Protection of Buried Pipe Lines” was prepared by a special task group of NACE Technical Group Committee T-2 on Pipe Line Corrosion. The statement reads as follows: “(1) All underground steel piping should be coated with a protective material of permanent high electrical resistivity. Such coatings, if not so compounded as to resist soil stresses, shall be shielded in such manner as to receive negligible damage from such stresses. (2) The coated piping shall be further protected from external corrosion by supplementing the protective coating mentioned in (1) with adequate cathodic protection.” 8.9.3

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