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This standard test method describes a quality assurance procedure for determining the potential and current capacity characteristics under laboratory conditions for aluminum and zinc alloy anodes used for cathodic protection (CP). Field performance of anodes should be evaluated to correspond to actual anode performance.
This standard is intended primarily for users, designers, and manufacturers involved with the application of CP in marine environments. This standard can be used by manufacturers and users of aluminum and zinc anodes for quality control verification. The most common usage is expected to be by manufacturers to meet quality control requirements requested by the purchasing user.
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The corrosion of reinforcing and prestressing steel in concrete structures caused by stray currents. The history of stray-current corrosion, sources, mechanisms, effects on structures, detection and mitigation.
This standard presents the practices used in providing galvanic anode cathodic protection (CP) to the normally submerged steel surfaces inside steel water storage tanks. It provides owners, engineers, and contractors a standard practice for the application of CP to the submerged surfaces of steel water storage tanks; for determining the effectiveness of these CP systems; and for the operation and maintenance of these CP systems.
This standard is applicable to steel water storage tanks of various sizes used in municipal water supply and fire protection, including elevated tanks and flat-bottom tanks at ground level. Although the practices presented in this standard generally are applicable to all such tanks, the galvanic anode CP system described in this standard may not be practical for tanks with large CP current demands.
HISTORICAL DOCUMENT. Determining the potential and current capacity characteristics under laboratory conditions for aluminum and zinc alloy anodes used for cathodic protection.
Corrosion control methods for structures made of steel-reinforced portland cement concrete. Causes of corrosion of the reinforcing steel and control methods.
Offshore structures represent large capital investments. Structures are being placed in offshore areas worldwide and are being designed to withstand forces resulting from hurricanes, arctic storms, tidal currents, earthquakes, and ice floes. Moreover, platform structures are currently being placed in deeper waters and, therefore, have become larger, more complex, and more expensive. Control of corrosion on structures is necessary for the economic development of oil and gas production, to provide safe support for working and living areas, and to avoid potential harm to the environment. Corrosion on offshore structures can be divided into three major areas: the submerged zone, the splash zone, and the atmospheric zone. The submerged zone also includes that portion of the structure below the mudline. For the purposes of this standard, offshore structures are stationary structures (platforms or subsea facilities) that are fixed to the sea floor by gravity, pilings, or mooring cables.
Minimum physical quality and inspection requirements for bracelet galvanic anodes for offshore pipeline applications, including risers and J-tubes. Historical Document 1999
This NACE standard presents guidelines for cathodic protection (CP) of reinforcing steel in buried or submerged concrete structures. These guidelines provide corrosion control personnel with information to control corrosion of conventional reinforcing steel in portland cement concrete structures through the application of CP. The guidelines presented in this standard are limited to CP systems for new or existing buried or submerged reinforced concrete elements.
HISTORICAL DOCUMENT. Recommendations for controlling external corrosion on underground storage tank systems by cathodic protection. Bare/coated mild steel tanks. Metallic piping & connectors/components.
Design, construction, operation, and maintenance of metallic structures and corrosion control systems used to mitigate the effect of lightning and overhead alternating current (AC) power transmission systems.
Technologies for on-line monitoring of cooling water systems on a short-term basis (minutes to hours) to provide output to deal with changing conditions in real time. Corrosion rates & changes in heat transfer coefficients with precision and accuracy. Historical Document 1989
In 1998, pipeline operators began to use a instrumented inspection technology that we now know as guided wave testing (GWT), which detects changes in the cross-sectional area of the pipe wall.