1.1 本试验方法包括在25°C下测定非催化无溶剂清漆中蒸汽压超过13.3 Pa（0.1托）的挥发性反应单体的百分比。经验表明，当蒸汽压低于13.3 Pa（0.1 Torr）时，该方法无法准确确定反应单体的百分比。 1.2 以国际单位制表示的数值是标准值。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。 有关具体预防措施，请参阅第节 5. . 注1: 没有类似或等效的ISO/IEC标准。 1.4 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====== 4.1 无溶剂清漆中反应性单体的百分比将影响未固化树脂的粘度、处理和加工性能。反应性单体的百分比可能会影响硬度和收缩度，进而影响固化树脂的物理和电气性能。

1.1 This test method covers the determination of the percent of volatile reactive monomer having a vapor pressure exceeding 13.3 Pa (0.1 Torr) at 25°C in an uncatalyzed solventless varnish. Experience has shown this method does not accurately determine percent reactive monomer when the vapor pressure is less than 13.3 Pa (0.1 Torr). 1.2 The values stated in SI units are 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 a specific precaution, see Section 5 . Note 1: There is no similar or equivalent ISO/IEC standard. 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 ====== 4.1 The percent of reactive monomer in solventless varnishes will affect the viscosity, the handling, and the processing properties of the uncured resin. The percent of reactive monomer will possibly affect the degree of hardness and shrinkage which in turn will affect the physical and electrical properties of the cured resin.