1.1 本试验方法涵盖了对燃气轮机燃料在燃料系统内沉积分解产物的趋势进行评级的程序。 1.2 以毫米汞柱为单位的压差值仅根据本试验方法进行定义。 1.3 以国际单位制表示的沉积值应视为基准值。 1.4 以国际单位制表示的压力值应视为标准。psi比较包括在某些不能以国际单位制报告压力的旧仪器的操作安全方面。 1.5 本标准不包括其他计量单位。 1.6 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。 有关具体的警告语句，请参阅 6.1.1 , 7.1 , 7.3 , 12.1.1 和 附件A6 . 1.7 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。 ====意义和用途====== 5. 1. 测试结果指示燃气轮机运行期间的燃料性能，并可用于评估当液体燃料接触处于指定温度的加热表面时形成的沉积物水平。

1.1 This test method covers the procedure for rating the tendencies of gas turbine fuels to deposit decomposition products within the fuel system. 1.2 The differential pressure values in mm Hg are defined only in terms of this test method. 1.3 The deposition values stated in SI units shall be regarded as the referee value. 1.4 The pressure values stated in SI units are to be regarded as standard. The psi comparison is included for operational safety with certain older instruments that cannot report pressure in SI units. 1.5 No other units of measurement are included in this standard. 1.6 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 warning statements, see 6.1.1 , 7.1 , 7.3 , 12.1.1 , and Annex A6 . 1.7 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 test results are indicative of fuel performance during gas turbine operation and can be used to assess the level of deposits that form when liquid fuel contacts a heated surface that is at a specified temperature.