1.1这些方法包括在变压器和某些其他电气设备中用作绝缘和冷却介质的ASKAREL的测试程序。这些方法通常适用于规范验收、工厂控制、参考测试和研究。以下章节介绍了这些程序: 试验方法 ASTM试验方法名称 化学测试 : 中和数 D664、D974 含水量 D1533 清除剂含量 D1701 可水解的氯代化合物 D1820、D2441 无机氯化物 D1821 热稳定性 D1936 电气测试 : 介质击穿电压 D877 损耗因子和相对介电常数 D924 比电阻 D1169 物理测试 : 粘度 D88、D455 火灾点 D92 倾点 D97 采样 D923 折射率 D1218 目视检查 D1702 比重 D1810 热膨胀系数 D1903 颜色 D2129 环境材料中的多氯联苯 D3304 矿物中的多氯联苯 气相色谱法测定绝缘油 D4059号 对于赛波特通用粘度在100°C时超过110 s的askarels o F、 某些测试程序的修改是必要的。 1.2作为预防措施，在对设备进行任何工作之前，应吹扫包含askarels和纤维素或其他有机材料的绝缘系统，通过使干燥氮气通过askarel并用干燥氮气冲洗气体空间来清除任何易燃气体痕迹。 1.3现行政府法规禁止生产和销售多氯联苯。该方法可作为所有ASKAREL、PCB和非PCB的参考。 注1——各种材料已成功用于采集、储存和测试askarels样品。在经验形成强烈偏好之前，这些方法中提及的材料将被理解为已批准但未指定。 注2——最近的ANSI委员会C-107指南中给出了处理和处置askarel和askarel浸渍材料的方法， 含多氯联苯的电容器和变压器级Askarels的处理和处置指南 . 注3——有关askarels的规范，请参阅规范D2233和D2283。 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。 具体预防说明见1.2。

1.1 These methods cover procedures for testing askarels that are used in transformers and certain other electrical apparatus as an insulating and cooling medium. These methods are generally suitable for specification acceptance, factory control, reference testing, and research. The procedures appear in the following sections: Test Method ASTM Designation of Test Method Chemical Tests : Neutralization Number D664, D974 Water Content D1533 Scavenger Content D1701 Chrlorine Compounds, Hydrolyzable D1820, D2441 Chlorides, Inorganic D1821 Thermal Stability D1936 Electrical Tests : Dielectric Breakdown Voltage D877 Dissipation Factor and Relative Permittivity D924 Specific Resistance D1169 Physical Tests : Viscosity D88, D455 Fire Point D92 Pour Point D97 Sampling D923 Refractive Index D1218 Visual Examination D1702 Specific Gravity D1810 Coefficient of Thermal Expansion D1903 Color D2129 Polychlorinated Biphenyls in Environmental Materials D3304 Polychlorinated Biphenyls in Mineral Insulating Oils by Gas Chromatography D4059 For askarels having a Saybolt Universal viscosity of over 110 s at 100 o F, modifications of certain test procedures are necessary. 1.2 As a precaution, insulating systems incorporating askarels and cellulose or other organic materials should be purged to remove any traces of flammable gases by bubbling dry nitrogen through the askarel and flushing the gas space with dry nitrogen before any work is performed on the apparatus. 1.3 Current governmental regulations prohibit the manufacture and sale of polychlorinated biphenyls (PCBs). This method serves as a reference for all askarels, PCB and non-PCB. Note 1--Various materials have been used successfully in taking, storing, and testing samples of askarels. Until experience has developed a strong preference, materials referred to in these methods will be understood to be approved but not specified. Note 2--Methods for handling and disposal of askarels and askarel-impregnated materials are given in a recent ANSI Committee C-107 Guide, Guidelines for Handling and Disposal of Capacitor and Transformer-Grade Askarels Containing Polychlorinated Biphenyls . Note 3--For specifications for askarels, see Specifications D2233 and D2283. 1.4 This standard does not purport to address all of the safety problems, 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. Specific precautionary statements are given in 1.2.