1.1 本试验方法包括测定复合材料预浸料的纤维含量、纤维容重、基体固体含量和基体含量。可选地，也可以在确定挥发物含量后确定基质固体含量。挥发物含量（如适用和需要）通过试验方法测定 D3530 . 1.2 本试验方法的程序A适用于可在有机溶剂中提取的主要热固性基体的复合预浸料。增强物和填料必须在所选提取试剂中基本不溶。该程序也可用于提取其他基质材料类型的相同目的。 1.3 本试验方法的程序B使用复合预浸料基体的点火损失，并适用于含有增强纤维的有机基体复合系统，当暴露于基体燃烧方法时，增强纤维的质量不会改变。 1.4 本试验方法假设两个- 部分材料系统（加上挥发物），不区分混合增强体或基质。混合复合材料的使用仅限于测定总钢筋或总基体含量。 1.5 程序A或B的基质固体测定使用试验方法 D3530 测定挥发物含量。 1.6 确定成分含量的替代技术包括试验方法 C613型 （索氏提取的树脂含量）和 D3171 （主要用于固结层压板）。 1.7 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.8 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。 具体预防信息在章节中给出 8. 和 9 . 1.9 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 本试验方法可用于获得纤维含量、纤维容重、基质含量或基质固体含量。了解这些结果有助于指定材料系统和开发最佳制造工艺。如果挥发物含量一致且对工艺不至关重要，则应使用基质含量。 5.2 本试验方法仅限于暴露于基质去除程序后不会改变质量的增强成分，并且仅限于通过基质去除程序完全去除的基质成分。如果遇到任何一种限制，应与终端达成协议- 用户了解如何继续。

1.1 This test method covers the determination of the fiber content, fiber areal weight, matrix solids content and matrix content of composite material prepregs. Optionally, the matrix solids content can also be determined after a volatiles content has been established. Volatiles content, if appropriate and required, is determined by means of Test Method D3530 . 1.2 Procedure A of this test method applies to composite prepreg of primarily thermosetting matrices that can be extracted in organic solvent. The reinforcement and filler must be substantially insoluble in the selected extraction reagent. This procedure may also be used for the same purposes to extract other matrix material types. 1.3 Procedure B of this test method uses ignition loss of a composite prepreg matrix and applies to organic matrix composite systems containing reinforcing fibers that do not change mass when exposed to the matrix combustion method. 1.4 This test method assumes a two-part material system (plus volatiles) and does not distinguish between hybrid reinforcements or matrices. Use with hybrid composites is limited to determination of total reinforcement or total matrix content. 1.5 Matrix solids determination for Procedures A or B uses Test Method D3530 to determine volatiles content. 1.6 Alternate techniques for determining constituent content include Test Methods C613 (resin content by Soxhlet extraction) and D3171 (used principally for consolidated laminates). 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 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 information is given in Sections 8 and 9 . 1.9 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 can be used to obtain the fiber content, fiber areal weight, matrix content or matrix solids content. Knowledge of these results is useful in specifying material systems and in developing optimum manufacturing processes. Where volatiles content is consistent and not critical to process, matrix content shall be used. 5.2 This test method is limited to reinforcement constituents that do not change mass upon exposure to the matrix removal procedure and limited to matrix constituents that are fully removed by the matrix removal procedure. In the event of experiencing either limitation, an agreement should be reached with the end-user as to how to proceed.