The national standard "GB/T 44295-2024 Epoxy E Fiberglass Cloth Bonding Sheets for Multilayer Printed Boards" stipulates the material and structure, performance requirements, size, mass assurance, Encasement and identification, storage period and indent information of epoxy E fiberglass cloth bonding sheets. E fiberglass cloth reinforced bifunctional epoxy adhesive sheets suitable for bonding multilayer printed boards limit the combustion properties of the adhesive sheets, and require flame retardant effect through brominated flame retardants. Glass transition temperature after lamination is not less than 120 ° C. This standard provides a unified technical basis and mass evaluation standard for the electronic circuit industry, improves the mass conformity of materials, and promotes the development of the industry. The standard will be implemented on December 1, 2024.