1.1 本试验方法涵盖了使电绝缘液体经受氧化老化的两个程序: 1.1.1 程序A， 没有金属催化剂，以及 1.1.2 程序B， 使用金属催化剂。 1.2 本试验方法适用于小于10%时用作电力传输电缆中浸渍或压力介质的绝缘液体 % 绝缘液在老化过程中蒸发。它主要用于评估和质量控制未使用的绝缘液体（抑制或非抑制）。 1.3 本试验方法适用于研究自由呼吸变压器绝缘液体的长期行为。在空气或氧气存在的情况下，未密封的容器老化程序可大大提高液体的氧化速率。该程序快速，可提供受控热应力评估。 1.4 以国际单位制表示的数值应视为标准值。括号中给出的值仅供参考。 1.5 开口烧嘴试验只能在闪点等于或高于130°C或高于烘箱温度15°C的液体上进行。 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。 看见 7.5 对于特定的警告声明。 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====== 5.1 对电绝缘液体在氧化条件下的稳定性感兴趣的绝缘液体公司、电气设备制造商和电力公用事业公司的实验室多年来一直使用开放式烧杯氧化老化方法。它们特别适用于检查绝缘液体生产和运输的连续性。它们还可用作适用类型绝缘液体的工艺和产品检查。 5.2 暴露在空气中的绝缘液体的规范极限- 烧杯氧化老化是通过适用类型绝缘液体的个别生产商和消费者之间的协议确定的。老化稳定性规范限值中涉及的绝缘液的这些特性可在氧化老化后（有时在老化前）通过适当的测试方法（如测试方法）进行测量 D924 , D971 , D1169 和 D974 或 D664页 . 其他测试方法，如 D445 可在认为合适时使用。

1.1 This test method covers two procedures for subjecting electrical insulating liquids to oxidative aging: 1.1.1 Procedure A, without a metal catalyst, and 1.1.2 Procedure B, with a metal catalyst. 1.2 This test method is applicable to insulating liquids used as impregnating or pressure media in electrical power transmission cables if less than 10 % of the insulating liquid evaporates during the aging procedures. It applies and is generally useful primarily in the evaluation and quality control of unused insulating liquids, either inhibited or uninhibited. 1.3 This test method is applicable to study the long-term behavior of an insulating liquid being considered for free breathing transformers. An unsealed vessel aging procedure, in presence of air or oxygen, allows greatly increased oxidation rate of the liquid. This procedure is rapid and provides a controlled thermal stress assessment. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.5 An open beaked test shall only be carried out on liquids with flash points at or above 130°C or 15°C above the oven temperature. 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. See 7.5 for a specific warning statement. 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 ====== 5.1 Open-beaker oxidative aging methods have been used for many years in laboratories of insulating liquid companies, electrical equipment manufacturers, and electric utility companies interested in the stability of electrical insulating liquids under oxidative conditions. They are particularly useful as a check on the continuity of production and shipment of insulating liquids. They are also useful as process and product checks for applicable type insulating liquids. 5.2 Specification limits for insulating liquids subjected to open-beaker oxidative aging by this method are established by agreement between individual producers and consumers of applicable type insulating liquids. These properties of the insulating liquid involved in specification limits for aging stability may be measured after the oxidative aging (and sometimes before aging) by appropriate test methods such as Test Methods D924 , D971 , D1169 , and D974 or D664 . Other test methods such as D445 can be used when deemed appropriate.