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The purpose of this NACE International technical report is to provide basic information regarding the mechanisms involved with cathodic protection (CP) shielding for external coatings applied to carbon steel pipelines, and the manner in which the breakdown of coating systems may or may not contribute to CP shielding. It is intended to be a basic reference from which the tendency of a coating system to fail and shield CP may be understood on a conceptual basis. Non-corrosion-related pipeline protection systems, including concrete weight coating, polyethylene encasement, insulation, and mechanical pipeline protection systems, are outside the scope of this report. End users of this report may include pipeline designers, corrosion engineers, integrity management specialists, regulators, CP service providers, coating suppliers, coating service providers, equipment suppliers, and pipeline/facility owners.
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Procedures to (1) assess corrosion (2) determine risk of corrosion and degradation (3) make decisions whether coating repair is needed (4) apply repair coatings.
Wax coating systems are designed to provide underground pipes with protection against corrosive environments. This standard recommended practice covers surface preparation, material requirements, application, and handling of hot- and cold-applied wax and component wrappers and wax-tape coating systems for the protection of underground pipe, fittings, and valves. This standard is intended for use by corrosion control personnel, design engineers, project managers, purchasers, and construction engineers and managers.
HISTORICAL DOCUMENT. Galvanic anode cathodic protection (CP) for submerged steel surfaces in water supply and fire protection storage tanks. Design and installation of CP systems. Effectiveness evaluation, operation, maintenance.
HISTORICAL DOCUMENT. This NACE International standard practice establishes the general principles to be adopted to minimize the effects of stray current corrosion caused by direct current (DC) and/or alternating current (AC) from external sources on steel reinforced concrete (RC) and prestressed concrete (PC) structures or structural elements. The standard practice offers guidance for the design of concrete structures that may be subject to stray-current corrosion; the detection of stray current interference; the selection of protection measures; and the selection of mitigation methods.
HISTORICAL DOCUMENT. Guidelines for sacrificial (galvanic) cathodic protection (SACP) of reinforcing steel in atmospherically exposed concrete elements or structures. Not applicable to nonferrous, coated or galvanized reinforcement.
DOWNLOADABLE HISTORICAL DOCUMENT - Electrochemical realkalization (ER) for conventionally reinforced concrete structures. Common industry practices for the application of ER. Part II of 2. Part I (Item 24214) is on electrochemical chloride extraction.
This standard provides a test method to evaluate coatings containing conductive carbon additives for use as an anode on atmospherically exposed reinforced concrete.
HISTORICAL DOCUMENT. Applications for cathodic protection (CP) coupons attached to buried pipelines to determine the level of corrosion protection provided by a CP system.