1.1 这些测试方法包括筛选电气设备中使用的建筑材料与电气绝缘油的兼容性。 1.2 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 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。 1.4 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 绝缘油电性能的变化幅度对于确定试样对油的污染至关重要。 3.2 油的物理和化学变化，如颜色、界面张力和酸度，也表明试样对油的溶解度或其他不利影响。 3.3 试样的物理变化（如硬度、膨胀和变色）表明了油对试样的影响，并用于确定材料在绝缘油中的适用性。 3.4 符合推荐标准的材料不一定表示适用于电气设备。还必须考虑其他特性。此外，某些含有添加剂的材料可能满足这些试验方法的要求，但在进行长期评估时并不令人满意。 此类材料的示例为基于聚氯乙烯（PVC）的化合物、尼龙和弹性体化合物。

1.1 These test methods cover screening for the compatibility of materials of construction with electrical insulating oil for use in electrical equipment. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 ====== 3.1 The magnitude of the changes in the electrical properties of the insulating oil are of importance in determining the contamination of the oil by the test specimen. 3.2 Physical and chemical changes in the oil such as color, interfacial tension and acidity, also indicate solubility or other adverse effects of the test specimen on the oil. 3.3 Physical changes of the test specimen such as hardness, swelling, and discoloration show the effect of the oil on the test specimen and are used to determine the suitability of the material for use in insulating oil. 3.4 A material meeting the criteria recommended does not necessarily indicate suitability for use in electrical equipment. Other properties must also be considered. Additionally, certain materials containing additives may meet the requirements of these test methods, yet be unsatisfactory when subjected to longer term evaluations. Examples of such materials are polyvinyl chloride (PVC) based compounds, nylon and elastomeric compounds.