1.1 本试验方法 2. 利用氧气加压容器评估具有相同成分（基础油和添加剂）的新汽轮机油和在役汽轮机油在150℃下存在水和铜催化剂盘管的氧化稳定性 °C。 1.2 附录X1 描述了一种新的可选汽轮机油（未使用）样品氮气吹扫预处理程序，用于确定预处理样品的RPVOT值的残余百分比除以新（未处理）油的RPVOT值，有时称为“%RPVOT保留”这种氮气吹扫预处理方法旨在检测不适用于高温燃气轮机的挥发性抗氧化剂抑制剂。 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- 括号中提供了其他单位（磅/平方英寸、克和英寸），因为它们要么是行业公认的标准，要么是根据本标准中的数字制造的仪器，要么两者都是。 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。 有关特定警告声明，请参阅 6.2 , 6.4 , 6.5 , 6.6 和 6.10 . 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 氧化稳定性的估计有助于控制该特性的连续性，以便对具有相同操作的生产批次进行批量验收。本试验方法并非替代试验方法 D943 或用于比较不同成分的新机油的使用寿命。 4.2 本试验方法还用于评估在用机油的剩余氧化试验寿命。

1.1 This test method 2 utilizes an oxygen-pressured vessel to evaluate the oxidation stability of new and in-service turbine oils having the same composition (base stock and additives) in the presence of water and a copper catalyst coil at 150 °C. 1.2 Appendix X1 describes a new optional turbine oil (unused) sample nitrogen purge pretreatment procedure for determining the percent residual ratio of RPVOT value for the pretreated sample divided by RPVOT value of the new (untreated) oil, sometimes referred to as a “% RPVOT Retention.” This nitrogen purge pretreatment approach was designed to detect volatile antioxidant inhibitors that are not desirable for use in high temperature gas turbines. 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— Other units are provided in parentheses (psi, grams, and inches), because they are either the industry accepted standard or the apparatus is built according the figures in this standard, or both. 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. For specific warning statements, see 6.2 , 6.4 , 6.5 , 6.6 , and 6.10 . 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 The estimate of oxidation stability is useful in controlling the continuity of this property for batch acceptance of production lots having the same operation. It is not intended that this test method be a substitute for Test Method D943 or be used to compare the service lives of new oils of different compositions. 4.2 This test method is also used to assess the remaining oxidation test life of in-service oils.