1.1 这些试验方法包括测定航空燃料和馏分燃料的导电性，包括有无静电消散添加剂。测试方法通常在燃料不带电时，即在静止状态下（称为静止电导率）测量电导率。 1.2 有两种测试方法可用于燃料电导率的现场测试。这些是:( 1. )用于在油箱中直接测量或现场或实验室测量燃料样品的便携式仪表，以及( 2. )用于连续测量燃料分配系统中燃料电导率的在线仪表。在使用便携式电表时，必须注意在测量前允许剩余电荷松弛，并防止燃油污染。 1.3 以国际单位表示的值应视为标准值。本标准不包括其他计量单位。 1.4 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建立适当的安全、健康和环境实践，并确定监管限制的适用性。 有关具体的预防说明，请参见 7.1 , 7.1.1 和 11.2.1 . 1.5 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》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 燃料耗散在泵送和过滤操作期间产生的电荷的能力由其电导率控制，该电导率取决于其离子种类的含量。如果导电率足够高，电荷消散得足够快，以防止其累积，并避免接收槽中的危险高电势。

1.1 These test methods cover the determination of the electrical conductivity of aviation and distillate fuels with and without a static dissipator additive. The test methods normally give a measurement of the conductivity when the fuel is uncharged, that is, electrically at rest (known as the rest conductivity). 1.2 Two test methods are available for field tests of fuel conductivity. These are: ( 1 ) portable meters for the direct measurement in tanks or the field or laboratory measurement of fuel samples, and ( 2 ) in-line meters for the continuous measurement of fuel conductivities in a fuel distribution system. In using portable meters, care must be taken in allowing the relaxation of residual electrical charges before measurement and in preventing fuel contamination. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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 precautionary statements, see 7.1 , 7.1.1 , and 11.2.1 . 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 ====== 5.1 The ability of a fuel to dissipate charge that has been generated during pumping and filtering operations is controlled by its electrical conductivity, which depends upon its content of ion species. If the conductivity is sufficiently high, charges dissipate fast enough to prevent their accumulation and dangerously high potentials in a receiving tank are avoided.