IEC 62788-5-1:2020+A1:2022提供了标准化试验方法的程序，用于评估设计用作边缘密封的材料的性能。当模块采用不透水（或极低渗透性）的前片和后片构造，以保护对水分敏感的光伏（PV）材料时，仍然有可能从侧面进入水分。本文件中描述的试验方法旨在用于标准化边缘密封件的评估方式。只有部分测试适用于IEC 61215和IEC 61730，其状态取决于具体设计。

IEC 62788-5-1:2020+A1:2022 provides procedures for standardized test methods for evaluating the properties of materials designed to be used as edge seals. When modules are constructed with impermeable (or extremely low permeability) front- and backsheets designed to protect moisture-sensitive photovoltaic (PV) materials, there is still the possibility for moisture to get in from the sides. The test methods described in this document are intended to be used to standardize the way edge seals are evaluated. Only some of these tests are applied for IEC 61215 and IEC 61730, and that status depends on the specific design.