1.1 该试验方法包括索氏提取程序，以确定复合材料预浸料坯的基质含量、增强剂含量和填料含量。挥发性物质含量（如适用和需要）通过试验方法测定 D3530 。 1.1.1 增强剂和填料必须基本上不溶于所选的提取试剂，并且任何填料都必须能够通过过滤提取残留物而与增强剂分离。 1.1.2 钢筋和填料含量测试结果为总钢筋含量和总填料含量；不能区分具有一种以上类型的增强材料或填料的混合材料系统。 1.2 该测试方法侧重于热固性基质材料体系，可通过有机溶剂提取基质。然而，其他未指明的试剂可以与该测试方法一起用于提取其他类型的基质材料，以达到相同的目的。 1.3 测定基质和钢筋含量的替代技术包括试验方法 D3171 （基质消化）， D2584 （基质燃尽/点火），以及 D3529 （基质溶解和灼烧损失）。试验方法 D2584 优选用于不受高温环境影响的增强材料，如玻璃、石英或二氧化硅。 1.4 自1997年以来，本标准的技术内容一直稳定，没有受到利益相关者的强烈反对。由于维护本标准的技术支持有限，自该日期以来的变更仅限于保持与其他ASTM D30委员会标准一致性所需的项目。因此，该标准不应被视为包括自1997年以来在方法和实践方面的任何重大变化。该标准的未来维护将仅响应特定请求，并且仅在技术支持允许的情况下执行。 1.5 以国际单位制表示的数值应视为标准。本标准中不包括其他计量单位。 1.6 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。 第节中给出了具体的预防说明 9 和 7.2.3 和 8.2.1 。 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 复合预浸材料的预浸料挥发物含量、基质含量、增强物含量和填料含量用于控制材料制造和随后的制造过程，是此类材料的规范和生产以及用此类材料制造的产品的制造中的关键参数。 5.2 可以分析该测试方法产生的提取产物（提取物、残留物或两者），以评估化学成分和纯度。

1.1 This test method covers a Soxhlet extraction procedure to determine the matrix content, reinforcement content, and filler content of composite material prepreg. Volatiles content, if appropriate, and required, is determined by means of Test Method D3530 . 1.1.1 The reinforcement and filler must be substantially insoluble in the selected extraction reagent and any filler must be capable of being separated from the reinforcement by filtering the extraction residue. 1.1.2 Reinforcement and filler content test results are total reinforcement content and total filler content; hybrid material systems with more than one type of either reinforcement or filler cannot be distinguished. 1.2 This test method focuses on thermosetting matrix material systems for which the matrix may be extracted by an organic solvent. However, other, unspecified, reagents may be used with this test method to extract other matrix material types for the same purposes. 1.3 Alternate techniques for determining matrix and reinforcement content include Test Methods D3171 (matrix digestion), D2584 (matrix burn-off/ignition), and D3529 (matrix dissolution and ignition loss). Test Method D2584 is preferred for reinforcement materials, such as glass, quartz, or silica, that are unaffected by high-temperature environments. 1.4 The technical content of this standard has been stable since 1997 without significant objection from its stakeholders. As there is limited technical support for the maintenance of this standard, changes since that date have been limited to items required to retain consistency with other ASTM D30 Committee standards. The standard therefore should not be considered to include any significant changes in approach and practice since 1997. Future maintenance of the standard will only be in response to specific requests and performed only as technical support allows. 1.5 The values stated in SI units are to be regarded as standard. 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. Specific precautionary statements are given in Section 9 and 7.2.3 and 8.2.1 . 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 prepreg volatiles content, matrix content, reinforcement content, and filler content of composite prepreg materials are used to control material manufacture and subsequent fabrication processes, and are key parameters in the specification and production of such materials, as well as in the fabrication of products made with such materials. 5.2 The extraction products resulting from this test method (the extract, the residue, or both) can be analyzed to assess chemical composition and degree of purity.