NACE SP 0207:2007

Presents procedures for performing close-interval DC pipe-to-electrolyte potential surveys on buried or submerged metallic pipelines. This standard addresses the potential survey component of hybrid survey techniques such as trailing-wire DCVG or intensive measurement surveys, but does not address other surveys such as cell-to-cell techniques used to evaluate the direction of current or the effectiveness of the coating. This standard is intended for use by corrosion control personnel involved with operating pipelines, contractors performing close-interval surveys, corrosion professionals interpreting close-interval survey data, and regulatory agencies.