1.1 本规程规定了在碳钢管道上应用热喷铝（TSA）涂层以防止大气腐蚀或绝缘下腐蚀的最低要求。本规程适用于管道制造设施或现场组装位置的TSA涂层。 1.2 本规程适用于管道外表面TSA的应用，以防止绝缘和非绝缘表面的大气腐蚀。 注1: TSA已被发现可用于高达1000°F（540°C）的未隔热表面温度，以及用于防止在25°F至300°F（-4°C至150°C）表面温度范围内运行的管道在隔热条件下腐蚀。 1.3 本规程包括TSA的表面处理、材料、应用和质量控制要求，TSA适用于管道制造设施或现场组装位置的碳钢管道。 1.4 这种做法以英寸磅和国际单位制表示。但是，除非订单规定使用公制值，否则应使用英寸磅单位。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ===意义和用途====== 5.1 TSA涂层的质量和有效性取决于多种因素，包括表面处理、涂层材料、环境条件和应用过程的控制。 该实践解决了与TSA正确应用相关的基本变量和问题。 5.2 TSA已被证明能抵抗碳钢管道的大气腐蚀和绝缘腐蚀（CUI）。NACE No.12/AWS C2.23M/SSPC-CS 23.00、AWS C2.18和NACE SP0198提供了有关TSA涂层性能的附加信息。

1.1 This practice defines the minimum requirements for the application of Thermal Spray Aluminum (TSA) coatings to carbon steel pipe for the purpose of preventing atmospheric corrosion or corrosion under insulation. This practice is intended to be effective for TSA coatings applied at pipe manufacturing facilities or at on-site assembly locations. 1.2 This practice is for the application of TSA to the external surfaces of piping to prevent atmospheric corrosion of insulated and non-insulated surfaces. Note 1: TSA has been found useful for temperatures up to 1000°F (540°C) for uninsulated surfaces and for preventing corrosion under insulation for pipes operating in the range of 25°F to 300°F (–4°C to 150°C) surface temperature. 1.3 This practice includes requirements for surface preparation, materials, application and quality control of TSA applied to carbon steel piping at the pipe manufacturing facility or at an on-site-assembly location. 1.4 This practice is expressed in both inch-pound and SI units. However, unless the order specifies the use of metric values, inch-pound units shall be used. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The quality and effectiveness of TSA coatings is dependent on a variety of factors including surface preparation, coating materials, environmental conditions and control of the applications process. This practice addresses the fundamental variables and concerns relative to proper TSA application. 5.2 TSA has been proven to offer resistance to the atmospheric corrosion of carbon steel pipe and to corrosion under insulation (CUI). The publication NACE No. 12/AWS C2.23M/SSPC-CS 23.00, AWS C2.18 and NACE SP0198 provide additional information regarding the performance of TSA coatings.