1.1 本规范涵盖了燃气轮机的燃料等级，不包括飞机上使用的燃气轮机，以指导相关方，如涡轮机制造商、燃料油供应商和购买者。这些等级描述如下: 1.1.1 0-GT S5000号、0-GT S500号和0-GT S15号包括石脑油、Jet B和其他轻烃液体，与煤油和燃料油相比，这些液体具有低闪点和低粘度的特点。 1.1.2 1-GT S5000号、1-GT S500号和1-GT S15号是一种适用于几乎所有燃气轮机的轻质馏分燃料油。 1.1.3 2-GT S5000号、2-GT S500号和2-GT S15号是一种比1-GT号更重的馏分，可用于不需要1号清洁燃烧特性的燃气轮机。 1-GT。燃气轮机可能需要燃料加热设备，这取决于燃料系统设计或环境温度条件，或两者兼而有之。 1.1.4 3-GT级可能是比2-GT级更重的馏出物，满足低灰要求的残余燃料油，或馏出物与残余燃料油的混合物。燃气轮机几乎在每一次安装中都需要燃料加热。 1.1.5 4-GT级包括大部分残余物和一些顶部原油。由于特性变化较大且缺乏控制，因此应就特性的可接受限制咨询燃气轮机制造商。 1.2 三个附录仅供参考，除非相关方达成一致，否则不构成本规范的要求。 1.2.1 附录X1 描述了本规范所涵盖的五种等级的燃气轮机燃料。此外，它还说明了在检查燃料时使用的各种测试方法的重要性。 1.2.2 附录X2 讨论了燃料污染物的来源，并指出了此类污染物在燃气轮机和燃气轮机燃料系统运行中的重要性。指出了燃气轮机燃料中微量金属的特殊重要性。建议对各种等级的燃气轮机燃料使用微量金属的上限，但除非相关方相互同意，否则这些建议的限值不构成规范的要求。还注意到由于使用过的或回收的油而造成的限制。 注1: 燃气轮机操作员应咨询实践 第4418页 用于确保燃料具有足够清洁度的方法，以及用于馏分燃料的长期储存和非石油来源的液体（如燃气轮机）的指导。 注2: 静电的产生和消散可能会在蒸馏燃气轮机燃料油的处理中产生问题。有关该主题的更多信息，请参阅指南 D4865 . 1.3 除非买方和供应商之间另有协议规定，否则本规范规定了交付时间和地点燃气轮机燃料油的要求特性。 1.4 本规范中的任何内容均不得妨碍遵守可能更具限制性的联邦、州或地方法规。 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》中确立的国际公认的标准化原则制定的。

1.1 This specification covers the grades of fuels for gas turbines, excepting gas turbines used in aircraft, for the guidance of interested parties such as turbine manufacturers and the suppliers and purchasers of fuel oils. These grades are described as follows: 1.1.1 Grades No. 0-GT S5000, No. 0-GT S500, and No. 0-GT S15 includes naphtha, Jet B, and other light hydrocarbon liquids that characteristically have low flash point and low viscosity as compared with kerosine and fuel oils. 1.1.2 Grades No. 1-GT S5000, No. 1-GT S500, and No. 1-GT S15 are a light distillate fuel oil suitable for use in nearly all gas turbines. 1.1.3 Grades No. 2-GT S5000, No. 2-GT S500, and No. 2-GT S15, which is a heavier distillate than Grade No. 1-GT, can be used by gas turbines not requiring the clean burning characteristics of Grade No. 1-GT. Fuel heating equipment may be required by the gas turbine depending on the fuel system design or ambient temperature conditions, or both. 1.1.4 Grade No. 3-GT may be a heavier distillate than Grade No. 2-GT, a residual fuel oil that meets the low ash requirements, or a blend of distillate with a residual fuel oil. Fuel heating will be required by the gas turbine in almost every installation. 1.1.5 Grade No. 4-GT includes most residuals and some topped crudes. Because of the wide variation and lack of control of properties, the gas turbine manufacturer should be consulted with regard to acceptable limits on properties. 1.2 Three appendixes are provided for informational purposes only and do not constitute a requirement of this specification unless mutually agreed upon between the interested parties. 1.2.1 Appendix X1 describes the five grades of gas turbine fuels covered by this specification. Further, it states the significance of various test methods used in inspecting the fuels. 1.2.2 Appendix X2 discusses the sources of fuel contaminants and notes the significance of such contaminants in the operation of gas turbines and gas turbine fuel systems. The particular significance of trace metals in gas turbine fuels is noted. Upper limits of trace metals are recommended for the various grades of gas turbine fuels, but these recommended limits do not constitute a requirement of the specification unless mutually agreed upon by the interested parties. Limitations due to the use of used or recycled oil are also noted. Note 1: The gas turbine operator should consult Practice D4418 for methods of ensuring fuels of adequate cleanliness and for guidance on long-term storage of distillate fuels and on liquids from non-petroleum sources as gas turbine. Note 2: The generation and dissipation of static electricity can create problems in the handling of distillate gas turbine fuel oils. For more information on the subject, see Guide D4865 . 1.3 This specification, unless otherwise provided by agreement between the purchaser and the supplier, prescribes the required properties of gas turbine fuel oils at the time and place of delivery. 1.4 Nothing in this specification shall preclude observance of federal, state, or local regulations which may be more restrictive. 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.