1.1 本规程涵盖了创建和维护盐雾试验环境所需的仪器、程序和条件。中描述了可能使用的合适设备 附录X1 . 1.2 本规程未规定用于特定产品的试样类型或暴露期，也未规定对结果的解释。 1.3 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。 1.4 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====== 3.1 本规程提供了一个受控的腐蚀环境，该环境已用于为暴露在给定试验箱中的金属和涂层金属样本生成相对耐腐蚀性信息。 3.2 当用作独立数据时，自然环境中的性能预测很少与盐雾结果相关。 3.2.1 根据本规程提供的试验环境暴露，腐蚀性能的相关性和外推并不总是可预测的。 3.2.2 只有在进行了适当的证实长期大气暴露的情况下，才应考虑相关性和外推。 3.3 盐雾暴露结果的再现性在很大程度上取决于测试样本的类型和选择的评估标准，以及操作变量的控制。在任何测试程序中，应包括足够的重复，以确定结果的可变性。当在不同的雾室中测试类似样本时，观察到了可变性，即使测试条件名义上相似，并且在本实施规程规定的范围内。

1.1 This practice covers the apparatus, procedure, and conditions required to create and maintain the salt spray (fog) test environment. Suitable apparatus which may be used is described in Appendix X1 . 1.2 This practice does not prescribe the type of test specimen or exposure periods to be used for a specific product, nor the interpretation to be given to the results. 1.3 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. 1.4 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 ====== 3.1 This practice provides a controlled corrosive environment which has been utilized to produce relative corrosion resistance information for specimens of metals and coated metals exposed in a given test chamber. 3.2 Prediction of performance in natural environments has seldom been correlated with salt spray results when used as stand alone data. 3.2.1 Correlation and extrapolation of corrosion performance based on exposure to the test environment provided by this practice are not always predictable. 3.2.2 Correlation and extrapolation should be considered only in cases where appropriate corroborating long-term atmospheric exposures have been conducted. 3.3 The reproducibility of results in the salt spray exposure is highly dependent on the type of specimens tested and the evaluation criteria selected, as well as the control of the operating variables. In any testing program, sufficient replicates should be included to establish the variability of the results. Variability has been observed when similar specimens are tested in different fog chambers even though the testing conditions are nominally similar and within the ranges specified in this practice.