1.1 本标准涵盖了在运行核电站中建立涂层服务水平（CSL）I涂层系统状态评估监测程序的程序。监测是评估在用涂层系统状况和性能的持续过程。 1.2 本标准旨在为制定涂层状态评估计划提供推荐依据，而不是为所有计划规定单一依据。本标准中所述程序的变更或简化可能适用于每个正在运行的核电站，具体取决于其许可承诺。 1.3 ASME第XI节、在役检查第IWE和IWL小节的要求不在本标准范围内。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 建立在役涂层监测计划允许根据需要规划和优先考虑涂层维护工作，以保持核CSL I涂层系统中的涂层完整性和性能。有关核维护涂层工作的更多信息，请参阅ASTM MNL8。 4. 4.2 涂层监测计划能够早期识别和检测涂层系统中的潜在问题。一些CSL I涂层系统可能事先被认为可疑、有缺陷或不合格。监测涂层性能将有助于制定后续措施- 更新程序，以解决与涂层工作相关的任何重大缺陷。 4.3 在设计基准事故条件下，劣化涂层可能会产生碎片，对事故后安全系统的性能产生不利影响。可能需要一个涂层监测计划来完成核电站设施中CSL I涂层工作的安全分析报告和一般信函承诺。

1.1 This standard covers procedures for establishing a monitoring program for condition assessment of Coating Service Level (CSL) I coating systems in operating nuclear power plants. Monitoring is an ongoing process of evaluating the condition and performance of the in-service coating systems. 1.2 It is the intent of this standard to provide a recommended basis for establishing a coatings condition assessment program, not to mandate a singular basis for all programs. Variations or simplifications of the program described in this standard may be appropriate for each operating nuclear power plant depending on their licensing commitments. 1.3 This requirements of ASME Section XI, In-Service Inspection Subsections IWE and IWL are beyond the scope of this standard. 1.4 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. 1.5 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 ====== 4.1 Establishment of an in-service coatings monitoring program permits planning and prioritization of coatings maintenance work as needed to maintain coating integrity and performance in nuclear CSL I coating systems. For additional information on nuclear maintenance coating work, refer to ASTM MNL8. 4 4.2 A coatings monitoring program enables early identification and detection of potential problems in coating systems. Some CSL I coating systems may be known in advance to be suspect, deficient, or unqualified. Monitoring coating performance will assist in developing follow-up procedures to resolve any significant deficiency relative to coating work. 4.3 Degraded coatings may generate debris under design basis accident conditions that could adversely affect the performance of the post-accident safety systems. A coatings monitoring program may be required to fulfill safety analysis report and generic letter commitments for CSL I coating work in a nuclear power plant facility.