This document specifies the terms and definitions, markings, requirements, test methods, inspection rules and markings, packaging, transportation and storage of molded polystyrene boards (hereinafter referred to as molded polystyrene boards) for passive low-energy building thermal insulation. This document is applicable to molded polystyrene board-free formwork systems, exterior wall insulation systems, and roof waterproofing insulation for passive low-energy buildings.