空调部件和系统的密封性由许多规范/标准根据制冷剂损失的g/yr来定义。这些标准对生产泄漏密封性规范的实施基于理论模型，这些理论模型导致了潜在的有偏见的规范，这些规范不考虑所有可能导致给定的微泄漏路径自堵塞的微流体现象。提出了一种通用的密封性规范方法，称为等效微几何（EMG）。EMG是微通道或针孔的最大尺寸，在正常运行期间可能会自行堵塞，因此符合当前的环境和功能规范。描述了用于根据经验确定适当EMG尺寸和制冷剂泄漏相关性的试验方法和装置，以及试验结果示例和建议的实施步骤。 单位:双引文:ASHRAE交易，第116卷，第。1，奥兰多2010

Air-Conditioning Components and Systems Leak Tightness is defined by numerous specifications/standards in terms of g/yr of refrigerant loss. Implementation of these standards to a production leak tightness specification has been based on theoretical models that have resulted in potentially biased specifications that do not consider all micro-fluidic phenomena that can cause a given micro leak-path to be self-plugged.A generic method for leak tightness specifications known as Equivalent Micro-Geometry (EMG) is presented. The EMG is the maximum size of a micro-channel or pin-hole that will likely self plug during normal operation and therefore meets current environmental and functional specifications. The test method and apparatus used to empirically develop the proper EMG sizes and a correlation to refrigerant leakage is described along with examples of test results and recommended implementation steps.Units: Dual