1.1 本试验方法包括使用现场监测器测定航空涡轮燃料中的颗粒污染物。 1.2 描述了两种测试方法。基本试验方法用于重量分析法评估污染程度。第二种试验方法，见 附录X1 ，描述了一种颜色评级技术，用于快速定性评估污染水平的变化，而无需严格的实验室程序进行重量测定所需的时间延迟。 1.3 本试验方法有两个附录和两个附录。 1.3.1 附录A1 提供了有关所需试剂使用的一些预防信息。 1.3.2 附件A2 描述了获取航空涡轮燃料流动流中微粒样品的标准实施规程。 1.3.3 附录X1 描述了一种根据现场燃料取样后滤膜的颜色来评定航空涡轮燃料中微粒水平的试验方法。 1.3.4 附录X2 提供了一些安全预防措施，以避免在遵循程序时由于燃料和设备上的电荷积累而产生静电放电。 1.4 以国际单位表示的数值应视为标准值。括号中给出的值仅供参考。 1.5 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。 1.6 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====== 5.1 本试验方法通过管线取样对航空涡轮燃料样品中的颗粒物进行重量测量。目的是尽量减少这些污染物，以避免过滤器堵塞和其他操作问题。虽然尚未确定燃油分配系统中所有点的颗粒污染物容许水平，但总污染物测量通常是最重要的。这个 附录X1 颜色评级方法对于燃油系统监测非常有用。重量分析和颜色评定试验结果之间不存在定量关系。

1.1 This test method covers the determination of particulate contaminant in aviation turbine fuel using a field monitor. 1.2 There are two test methods described. The basic test method is used to evaluate the level of contamination gravimetrically. The second test method, presented in Appendix X1 , describes a color rating technique that is used for rapid qualitative assessment of changes in contamination level without the time delay required for the gravimetric determinations by stringent laboratory procedures. 1.3 There are two Annexes and two Appendixes in this test method. 1.3.1 Annex A1 provides some precautionary information regarding the use of the required reagents. 1.3.2 Annex A2 describes a standard practice for obtaining a sample of the particulates present in a flowing stream of aviation turbine fuel. 1.3.3 Appendix X1 describes a test method for rating the particulate level in an aviation turbine fuel on the basis of the color of a filter membrane after sampling the fuel in the field. 1.3.4 Appendix X2 provides some safety precautions to avoid static discharge resulting from the accumulation of electrical charges in the fuel and on the equipment while following the procedures. 1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 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. 1.6 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 This test method provides a gravimetric measurement of the particulate matter present in a sample of aviation turbine fuel by line sampling. The objective is to minimize these contaminants to avoid filter plugging and other operational problems. Although tolerable levels of particulate contaminants have not yet been established for all points in fuel distribution systems, the total contaminant measurement is normally of most interest. The Appendix X1 color rating method is useful for fuel system monitoring purposes. No quantitative relationship exists between gravimetric and color rating test results.