scope:

This part of IEC 62788 defines test methods and datasheet reporting requirements for safety and performance-related properties (mechanical, electrical, thermal, optical, chemical) of non- rigid polymeric materials intended for use in terrestrial photovoltaic modules as polymeric front- and backsheets. The test methods in this document define how to characterize front- and backsheet materials and their components in a manner representative of how they will be used in the module, which eventually includes combination with other matched components such as encapsulants or adhesives. It is impractical to conduct all characterization and endurance tests for the front- or backsheet component on the module level. Instead, testing is performed directly on these components or on dedicated test coupons prepared under comparable processing conditions (i.e. lamination) as for PV modules.