1.1 本试验方法包括以复合材料预浸料的质量百分比测定挥发物含量。本标准侧重于具有热固性树脂的复合材料，当加热时，由于在加热过程中挥发的残留水和低分子量基体成分的损失，其基体质量往往会损失几%。 1.2 本试验方法的使用仅限于循环空气烘箱的最高温度，约为300℃ °C（572 °F）。 1.3 本试验方法的使用仅限于基体从钢筋中流出的温度。 1.4 单位- 以国际单位制表示的数值应视为标准值。国际单位制后括号中给出的值仅供参考，不被视为标准值。 1.5 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。 第节给出了具体的预防说明 8. . 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 本试验方法用于获得复合材料预浸料的挥发物含量。挥发物含量的知识有助于开发最佳制造工艺。 5.2 在暴露于标称固化或固结温度后测定挥发物含量。

1.1 This test method covers the determination of the volatiles content, in mass percent of composite material prepregs. This standard focuses on composites with thermosetting resins, which tend to lose a few percent of the matrix mass when heated due to loss of both retained water and low molecular weight matrix constituents that volatilize during heating. 1.2 Use of this test method is limited to maximum temperature of circulating air ovens, approximately 300 °C (572 °F). 1.3 Use of this test method is limited to temperatures below which the matrix flows from the reinforcement. 1.4 Units— The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 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. Specific precautionary statements are given in Section 8 . 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 is used to obtain the volatiles content of composite material prepreg. Knowledge of the volatiles content is useful in developing optimum manufacturing processes. 5.2 The volatiles content is determined after exposure to the nominal cure or consolidation temperature.