1.1 本指南涵盖并描述了影响实验室浸没腐蚀试验（尤其是质量损失试验）的因素。这些因素包括仪器、取样、试样、试验条件（试液成分、温度、气体喷射、流体运动、溶液体积、支撑试样的方法、试验持续时间）、清洗试样的方法、结果解释和腐蚀速率计算。本指南还强调了记录所有相关数据的重要性，并提供了报告测试数据的检查表。 1.2 局部侵蚀、环境辅助开裂和溶液流动影响的具体评估不在本指南的范围内。 1.3 本指南旨在供设计实验室浸入式测试的人员使用，他们可能不熟悉设计和执行此类测试时需要考虑的所有变量以及可能遇到的陷阱。应将其用作参考，以确保测试将允许以最小干扰生成与应用相关的数据。 1.4 以国际单位制表示的数值应视为标准值。国际单位制后括号中给出的值仅供参考，不被视为标准值。 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。 1.6 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 腐蚀测试本身就无法完全标准化。本标准（而非标准化程序）作为指南提供，以避免此类测试的一些陷阱。 4.2 经验表明，所有金属和合金对影响腐蚀的许多因素的反应并不相同，加速腐蚀试验仅给出指示性结果，甚至可能完全误导。除了需要标准化的材料鉴定试验外，建议一种通用的不灵活的标准实验室腐蚀试验程序是不切实际的。 本指南的一个目的是通过更详细地记录有意义的因素和条件，促进未来结果的更好相关性，减少相互冲突的报告。 4.3 在设计任何腐蚀试验时，应考虑本指南中讨论的各种因素，因为已发现这些因素会影响获得的结果。

1.1 This guide covers and describes the factors that influence laboratory immersion corrosion tests, particularly mass loss tests. These factors include apparatus, sampling, test specimen, test conditions (test solution composition, temperature, gas sparging, fluid motion, solution volume, method of supporting test specimens, duration of test), methods of cleaning test specimens, interpretation of results, and calculation of corrosion rates. This guide also emphasizes the importance of recording all pertinent data and provides a checklist for reporting test data. 1.2 The specific evaluation of localized attack, environmentally assisted cracking, and effects of solution flow are not within the scope of this guide. 1.3 This guide is intended to be used by those designing laboratory immersion tests who may not be familiar with all of the variables to consider and the pitfalls that could be encountered when designing and conducting this kind of testing. It should be used as a reference to ensure that the test will allow generation of data relevant to the application with the minimum of interferences. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 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 ====== 4.1 Corrosion testing by its very nature precludes complete standardization. This standard, rather than a standardized procedure, is presented as a guide so that some of the pitfalls of such testing may be avoided. 4.2 Experience has shown that all metals and alloys do not respond alike to the many factors that affect corrosion and that accelerated corrosion tests give indicative results only, or may even be entirely misleading. It is impractical to propose an inflexible standard laboratory corrosion testing procedure for general use, except for material qualification tests where standardization is required. One purpose for this guide is to promote better correlation of results in the future and the reduction of conflicting reports through a more detailed recording of meaningful factors and conditions. 4.3 In designing any corrosion test, consideration should be given to the various factors discussed in this guide, because these factors have been found to affect the results obtained.