1.1 本试验方法包括一个试验程序，用于评估在台架安装的准双曲面差速器壳体总成中受到水污染和高温时齿轮润滑剂的防锈和防腐性能。 2. 这种测试方法通常被称为L-33-1测试。 1.2 以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 1.2.1 例外情况-- ( 1. )其中没有直接的SI等效物，例如螺纹和国家管道螺纹/直径，以及( 2. )以国际单位制表示的值应视为中定义的标准值 12.2 ，对于没有直接英寸的SI单位- 磅当量单位。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 该试验模拟了一种严重的现场服务，在这种服务中，凝结水蒸气形式的腐蚀促进湿气积聚在车桥总成中。 这可能是由于车轴润滑剂的体积膨胀和收缩，以及伴随着湿气通过车轴通风口吸入的结果。测试对润滑剂进行筛选，以确定其防止预期腐蚀的能力。 5.2 L-33-1试验程序在以下文件中使用或提及:ASTM出版物STP-512A， 6. SAE J308、SAE J2360和美国军事规范MIL-PRF-2105E。

1.1 This test method covers a test procedure for evaluating the rust and corrosion inhibiting properties of a gear lubricant while subjected to water contamination and elevated temperature in a bench-mounted hypoid differential housing assembly. 2 This test method is commonly referred to as the L-33-1 test. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.2.1 Exceptions— ( 1 ) where there is no direct SI equivalent such as screw threads and national pipe threads/diameters, and ( 2 ) the values stated in SI units are to be regarded as standard for the definitions in 12.2 , and for SI units where there are no direct inch-pounds equivalent units. 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 ====== 5.1 This test simulates a type of severe field service in which corrosion-promoting moisture in the form of condensed water vapor accumulates in the axle assembly. This may happen as a result of volume expansion and contraction of the axle lubricant and the accompanied breathing in of moisture-laden air through the axle vent. The test screens lubricants for their ability to prevent the expected corrosion. 5.2 The L-33-1 test procedure is used or referred to in the following documents: ASTM Publication STP-512A, 6 SAE J308, SAE J2360, and U.S. Military Specification MIL-PRF-2105E.