PROCESS OF DETECTION OF CORROSION-RISKY SECTIONS IN UNDERGROUND METAL STRUCTURES Russian patent published in 1999 - IPC

FIELD: detection of corrosion-risky sections in underground metal structures at early stages of corrosion process. SUBSTANCE: process can be used under conditions of action of technique-produced electric fields. Process consists in sampling of ground, in selective derivation of labile forms of chemical elements included in composition of pipes from samples and of chemical elements transforming into labile forms from ground compounds as result of physical and chemical process taking place in ground leading to corrosion and in isolation of corrosion-risky section by anomalies of labile forms of these chemical elements. EFFECT: improved authenticity of process. 2 dwg