1.1 本试验方法包括服装整体耐蒸发性的测定。它描述了从加热的出汗热人体模型到测试环境的蒸发传热阻力的测量。有关测量个别服装和套装的局部蒸发阻力值的信息，请参见 附件A1 . 1.1.1 这是一项静态测试，在站立人体模型上提供基线服装测量。 1.1.2 本试验方法未涉及身体位置和运动的影响。 1.2 获得的蒸发阻力值仅适用于评估的特定集合和每个试验的指定环境条件，特别是空气运动和出汗模拟。 1.3 以SI单位报告的蒸发阻力值应视为标准值。 1.4 本标准并不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建立适当的安全、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。 ===意义和用途====== 4.1 该试验方法可用于量化和比较不同衣物系统提供的蒸发阻力。在等温条件下测量的集合的蒸发阻力值可用于预测不同环境条件下人的生理反应的模型中。还可以比较衣服的蒸发阻力值（参见 附件A1 ). 4.2 衣服提供的蒸发阻力的测量是复杂的，并且取决于所使用的设备和技术。在这种范围的测试方法中，建立足以涵盖所有意外事件的细节是不实际的。 偏离本试验方法中的说明可能导致显著不同的试验结果。需要有关传热、水分传递、温度、湿度和空气运动测量理论以及测试实践的技术知识，以评估与本测试方法中给出的说明的偏差是否显著。方法的标准化减少但不消除对此类技术知识的需求。报告结果中的任何偏差。

1.1 This test method covers the determination of the evaporative resistance of clothing ensembles. It describes the measurement of the resistance to evaporative heat transfer from a heated sweating thermal manikin to the testing environment. Information on measuring the local evaporative resistance values for individual garments and ensembles is provided in Annex A1 . 1.1.1 This is a static test that provides a baseline clothing measurement on a standing manikin. 1.1.2 The effects of body position and movement are not addressed in this test method. 1.2 The evaporative resistance values obtained apply only to the particular ensembles evaluated and for the specified environmental conditions of each test, particularly with respect to air movement and sweating simulations. 1.3 Evaporative resistance values reported in SI units shall 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. ====== Significance And Use ====== 4.1 This test method can be used to quantify and compare the evaporative resistance provided by different clothing systems. The evaporative resistance values for ensembles measured under isothermal conditions can be used in models that predict the physiological responses of people in different environmental conditions. Garment evaporative resistance values can be compared as well (see Annex A1 ). 4.2 The measurement of the evaporative resistance provided by clothing is complex and dependent upon the apparatus and techniques used. It is not practical in a test method of this scope to establish details sufficient to cover all contingencies. Departures from the instructions in this test method have the potential to lead to significantly different test results. Technical knowledge concerning the theory of heat transfer, moisture transfer, temperature, humidity, and air motion measurement, and testing practices is needed to evaluate which departures from the instructions given in this test method are significant. Standardization of the method reduces, but does not eliminate, the need for such technical knowledge. Report any departures with the results.