1.1 本实施规程确立了当涂有此类涂层系统的面板在海洋环境中处于浸泡条件时，评估海洋涂层系统的生物污垢沉降程度和物理性能的实施规程。试样的制备、暴露和处理指南见下文所述的相关ASTM标准（见第节） 2. ). 1.2 本规程和相关暴露方法设计为相对评估涂层性能的工具，决不能用作所有条件和环境下长期性能的绝对指标。暴露点之间和暴露点内的水质、污损生物的数量或种类可能存在很大的可变性，涂层性能可能随这些和其他特性而变化。 1.3 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 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。 第节给出了具体的危险说明 6. . 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====== 5.1 本规程旨在为面板检查员提供指导，以定量和一致地评估涂有海洋防污涂层系统的测试面板的涂层性能。该实践基于防污和物理性能评估涂层系统的性能。 5.2 用户应注意，结果代表了样本浸泡的特定区域和时间。应注意，结果的解释将取决于进行试验的地理位置、涂层试样是否完全或部分浸入、静态或动态条件下以及位置和方向。 5.3 应包括在特定海洋环境中对经验证的标准防污涂层系统（已知可最大限度地减少污垢累积，例如，含有杀生物剂或活性剂以防止污垢沉降/增长）进行的同时测试，作为参考，以帮助解释结果。此外，应定期包括阴性对照（易受严重污染的惰性表面）。为了使暴露有效，阴性对照物的表面应显示出相对于标准系统的严重污垢。 5.4 产生与标准系统相关的积极结果的海洋涂层系统显示出在保护水下海洋结构物方面的潜力。 5.5 该格式可独立于暴露协议和涂层类型使用，并为最终用户提供一致的实践和性能评级报告格式。

1.1 This practice establishes a practice for evaluating degree of biofouling settlement on and physical performance of marine coating systems when panels coated with such coating systems are subjected to immersion conditions in a marine environment. Guidance for preparation or exposure and handling of test specimens can be found in related ASTM standards as noted below (see Section 2 ). 1.2 This practice and related exposure methodologies are designed as tools for the relative assessment of coating performance, and in no way are to be used as an absolute indicator of long-term performance under all conditions and in all environments. There can be high variability among and within exposure sites with respect to water quality and population or species of fouling organisms, and coating performance may vary with these and other properties. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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. A specific hazard statement is given in Section 6 . 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 ====== 5.1 This practice is designed to provide guidance to a panel inspector for quantitative and consistent evaluation of coating performance from test panels coated with marine antifouling coating systems. The practice assesses performance of coating systems based on both antifouling and physical properties. 5.2 The user is cautioned that the results are representative for the specific region and time of year in which the specimens are immersed. It shall be noted that interpretation of results will depend on the geographical location where the test is conducted, whether the coated specimens are exposed either totally or partially immersed, under static or dynamic conditions, and position and orientation. 5.3 Simultaneous testing of a proven standard antifouling coating system (known to minimize fouling accumulation, for example, containing biocide or active agent(s) to prevent fouling settlement/growth) in the specific marine environment shall be included as a reference to assist in interpretation of results. In addition, a negative control (inert surface susceptible to heavy fouling) shall be included on a regular basis. For the exposure to be valid, the surface of the negative control should show heavy fouling relative to the standard system(s). 5.4 Marine coating systems that produce positive results relevant to the standard system(s) show potential for use in protecting underwater marine structures. 5.5 The format can be utilized independent of exposure protocol and coating type, and provides the end user with a consistent practice and format for reporting of performance rating.