1.1 本试验方法涵盖液压油、航空涡轮发动机润滑油和其他高度精制油的试验，以确定其抗氧化性和耐腐蚀性以及对各种金属的腐蚀倾向。可以使用潮湿或干燥的空气（带或不带金属试样）评估石油和合成流体。 1.2 该试验方法由标准试验程序、替代程序1和替代程序2组成。由于该试验方法可能存在变化，因此将根据特定规范确定所需的条件。除温度外，如果不是标准程序或替代程序1或2的变量，则要指定的变量为: 测试时间、空气流量和湿度、样本频率、测试液量和金属样本。 1.3 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3.1 例外情况- 一些图中括号内的值仅供使用基于非国际单位制的旧设备的人员参考。 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和健康实践，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 该试验方法模拟了完全配制的润滑液在实际使用中遇到的环境，并使用加速氧化速率，以便在合理的时间内获得可测量的结果。金属的使用为实际系统中常见的材料提供了催化反应表面。 高温和空气搅拌有助于加速预期发生的氧化反应。空气中的水分增加了另一种现实条件，即通过促进酸的形成来促进油的分解。 4.2 应通过与已知油田动态的石油数据进行比较来解释结果。加速条件可能会导致以下一种或多种可测量的影响:某些金属的质量变化和腐蚀外观；粘度变化；酸值增加；以污泥形式存在的可测量反应产物；以及由于蒸发导致的油质量损失。 4.3 本试验方法最适用于含有抗氧化剂和缓蚀剂的油。如果没有这些成分，严峻的测试条件将对油产生相当剧烈的变化。

1.1 This test method covers the testing of hydraulic oils, aircraft turbine engine lubricants, and other highly refined oils to determine their resistance to oxidation and corrosion degradation and their tendency to corrode various metals. Petroleum and synthetic fluids may be evaluated using moist or dry air with or without metal test specimens. 1.2 This test method consists of a standard test procedure, an alternative Procedure 1, and an alternative Procedure 2. As there are variations possible with this test method, it will be up to the particular specification to establish the conditions required. In addition to temperature, the variables to specify if other than those of the standard procedure or alternative Procedure 1 or 2 are: test time, air flow and humidity, sample frequency, test fluid quantity, and metal specimen(s). 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3.1 Exception— The values in parentheses in some of the figures are provided for information only for those using old equipment based on non-SI units. 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 and health 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 This test method simulates the environment encountered by fully formulated lubricating fluids in actual service and uses an accelerated oxidation rate to permit measurable results to be obtained in a reasonable time. The use of metals provides catalytic reactive surfaces of those materials commonly found in real systems. The high temperature and air agitation help accelerate the oxidation reactions that are expected to occur. Moisture in the air adds another realistic condition that encourages oil breakdown by facilitating acid formation. 4.2 Interpretation of results should be done by comparison with data from oils of known field performance. The accelerated conditions likely will cause one or more of the following measurable effects: mass change and corroded appearance of some metals; change of viscosity; increase in acid number; measurable reaction products in the form of sludge; and mass loss of oil due to evaporation. 4.3 This test method is most suitable for oils containing oxidation and corrosion inhibitors. Without such ingredient(s), the severe test conditions will yield rather drastic changes to the oil.