1.1 本试验方法包括通过过滤输送至实验室的航空涡轮燃料样品中的颗粒污染物进行重量测定。 1.1.1 使用真空通过测试膜和对照膜过滤样品。质量变化差异确定了每单位体积的污染物水平。 1.2 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.3 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。 有关具体的危险说明，请参阅 4.2 , 7.3 , 7.5 , 11.2 和 X1.7.2英寸 在使用本标准之前，请参阅供应商的安全标签、材料安全数据表和技术文献。 1.4 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 该试验方法提供了对交付给实验室进行评估的航空涡轮燃料样品中存在的颗粒物的重量测量。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。尽管尚未为燃料分配系统中的所有点确定颗粒污染物的可容忍水平，但通常最感兴趣的是总污染物测量。

1.1 This test method covers the gravimetric determination by filtration of particulate contaminant in a sample of aviation turbine fuel delivered to a laboratory. 1.1.1 The sample is filtered through a test membrane and a control membrane using vacuum. The mass change difference identifies the contaminant level per unit volume. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 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 hazard statements, see 4.2 , 7.3 , 7.5 , 11.2 , and X1.7.2 . Before using this standard, refer to supplier's safety labels, material safety data sheets, and technical literature. 1.4 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 delivered to a laboratory for evaluation. 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.