1.1 本试验方法包括使用旋转闪蒸蒸发器测定航空航天部件溶剂提取物中的非挥发性物质，即蒸发残渣。 1.2 从成分中提取的程序在实践中进行了描述，例如实践 F303 . 在采用以下方法提取提取物之前，应按照惯例对其进行处理，以去除不溶性颗粒 F311 ( 注1 ). 然后，可根据试验方法对去除的颗粒进行颗粒计数分析 F312 . 如果在执行此方法之前未从提取物中去除颗粒，则应在试验报告中注明。 注1: 用本试验方法处理的样品应使用最大可萃取含量为0.5重量%的膜过滤器。传统膜包含5到10个 % 可提取物。为了获得非常低的背景水平，应考虑使用无网格标记的膜。 1.3 以国际单位制表示的数值应视为标准值。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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。 1.5 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。

1.1 This test method covers the determination of nonvolatile matter, that is, residue on evaporation, in solvent extract from aerospace components, using a rotary flash evaporator. 1.2 The procedure for extraction from components is described in practices such as Practice F303 . Before subjecting the extract to the following method, it should be processed to remove the insoluble particulate in accordance with Practice F311 ( Note 1 ). Particle count analysis of the removed particulate may then be performed in accordance with Test Method F312 . If particulate is not removed from the extract prior to performing this method, this should be noted on the test report. Note 1: Membrane filters with a maximum extractable content of 0.5 weight % should be used on samples to be processed by this test method. Conventional membranes contain 5 to 10 % extractables. For obtaining very low background levels, consideration should be given to using membranes without grid marks. 1.3 The values stated in SI units are to be regarded as 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. 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.