IAPMO PS 65-2019a涵盖了用于水调节设备安装的气隙装置，并规定了材料、物理特性、性能测试和标记的要求。带有标准入口和出口的气隙装置也可以集成到其他较大的外壳或产品子组件中，在这些外壳或产品子组件中，它们需要执行相同的气隙功能。只要包含的气隙装置符合本标准的要求，这是可以接受的。

IAPMO PS 65-2019a covers Airgap units intended for water conditioning equipment installation and specifies requirements for materials, physical characteristics, performance testing, and markings.Airgap units with standard inlet and outlet ports also may be integrated into other larger housings or product sub-assemblies wherein they are required to perform the same airgap functions. This shall be acceptable so long as the contained airgap units meet the requirements of this standard.