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现行 ASTM D5479-94(2020)
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Standard Practice for Testing Biofouling Resistance of Marine Coatings Partially Immersed 海洋涂料部分浸渍的生物结垢性测试标准实践
发布日期: 2020-08-01
1.1 本规程涵盖了在现场部分浸入暴露时测试耐生物污染涂层系统或防污系统或两者的程序。这加强了某些海洋污损生物的沉降,并增加了可能的物理恶化速度。 1.2 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。 1.3 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。 1.4 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 本试验方法设计为筛选试验,以评估所用涂层系统和其他设计用于抵抗生物污垢沉降的材料的性能。 4.2 污垢的程度和类型因环境而异。测试地点的地理位置、面板暴露的时间以及一年到下一年的天气条件的差异可能会影响结果。通过对无毒表面的污垢普查,对这些变量进行了说明。为了使暴露有效,无毒表面应显示出严重的污垢累积。
1.1 This practice covers a procedure to test a biofouling resistant coating systems or antifouling systems, or both, when subjected to in situ partial immersion exposure. This enhances settlement of certain marine fouling organisms and increase the rate of possible physical deterioration. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 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. 1.4 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 This test method is designed as a screening test to evaluate the performance of applied coating systems and other materials designed to resist biofouling settlement. 4.2 The degree and type of fouling will vary depending on the environment. Differences in geographic location of test sites, time of year when panels are exposed, and weather conditions from one year to the next, can affect results. Such variables are accounted taking a fouling census on a nontoxic surface. For the exposure to be valid, the nontoxic surface should show heavy fouling accretion.
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归口单位: D01.45
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