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This standard provides requirements for selecting and evaluating abrasive media encapsulated in a compressible non-uniform cellular matrix used to blast clean steel and other surfaces prior to the application of protective coatings. The standard also includes requirements for quality control of new and recycled media.
Application of zinc and aluminum alloys to steel substrates using thermal spray, referred to as “metalizing” or “thermal spray coatings” (TSCs). Preparation, application, measurement, sealers and topcoats.
This guide provides the specifier and user with information regarding the use of pre-construction primers (PCPs) on structural steel in shipbuilding. It provides background on the reasons to use and retain PCPs, the types of PCPs and their application and inspection, and the secondary surface preparation processes that are used when PCPs are retained in the final, compatible primary coating system. While this document contains details specific to the shipbuilding industry, the technical concepts related to the application and retention of PCP may apply to other industrial applications.
This coating material standard is intended primarily for use by coating manufacturers, specifiers, and applicators. It contains requirements for the formulation of the coating material as well as requirements for material properties of the formulated coating and instructions for proper application of the coating. The coating is intended for use in environments that are not exposed to ultraviolet light. Its use may be restricted in some areas due to its coal tar content.
This specification contains performance requirements for a two-component, weatherable polyurea topcoat. The coating may be fast or moderately fast drying.
STABILIZATION NOTICE: This document has been declared “Stabilized” by AMPP Standards Committee (SC) 25 and will no longer be subjected to periodic reviews for currency.
This standard establishes a procedure for evaluating the qualifications of contractors whose work involves disturbance of hazardous coatings (e.g., containing lead or other hazardous metals) incidental to demolition or repair work on complex or conventional structures.
This technical report discusses equipment, procedures, materials, and the resulting substrate conditions involved in a variety of WAB cleaning methods currently available for commercial use. It also discusses the effect that the water present with these wet cleaning methods has on achieving the defined degree of cleaning of steel surfaces in accordance with the wet abrasive blast cleaning standards found in the list of Referenced Standards and Other Consensus Documents. It is intended for use primarily by specifiers, owners, painting contractors, inspectors, and others involved in surface preparation of industrial structures.
This report was originally issued in 1998 and has been revised to include additional configurations of equipment setup as well as current (2022) developments in the design of wet abrasive blast cleaning systems and nozzles. This TR provides a foundation to assist users to determine the quantity and quality of water, abrasive, and air.
This paper discusses the design process and challenges in choosing what was at the time, the largest ever cathodic protection retrofit in terms of delivered current capacity offshore, and the actual current the structure required to maintain protection.
Stabilized austenitic stainless steel (SS) grade 347 is used extensively in high-temperature processes in the petroleum refining industry, while duplex SS (DSS) grade 2205 is a relatively newer material in the industry. Though these grades of SSs perform well in refinery process streams, there are incidents of failure of process equipment attributable to stress corrosion cracking (SCC). The paper deals with a study on the cracking susceptibility of SS grade 347 and DSS grade 2205 in refinery simulated process environments containing hydrogen sulfide and chloride. The paper also reports the electrochemical behavior of these SSs in the medium containing hydrogen sulfide and chloride. The electrochemical behavior of the alloys was assessed by cyclic polarization experiments. Slow strain rate test (SSRT) was used to evaluate the susceptibility of the alloys to SCC. The cyclic polarization studies indicate that the H2S – chloride synergism had a pronounced effect on the localized corrosion susceptibility of 347 SS, while the effect was marginal on the alloy DSS 2205. The SCC susceptibility of 347 SS and DSS 2205 is strongly influenced by hydrogen sulfide-chloride synergism. Initiation of corrosion pits and the sulfidation of active pits due to the synergism were the important steps in the initiation of SCC.
This complete NACE written standard SP0178 is a guide to visual inspection to determine whether welds are suitable for coating. A visual aid - castings of 14 welds in a plastic replica - is included.