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??? ?The National Technical Committee 255 on Glass in Building of Standardization Administration of China (hereinafter referred to as the Committee) was established in March, 2001, No. is SAC/TC255. Secretariat is undertaken by Qinhuangdao Glass Industry Research & Design Institute, the technology of which is suited to International Organization for Standardization ISO/TC 160. TC255 includes the SC1 Solar Photovoltaic Hollow Glass Technical Sub-Committee, SC2 Product Research and Technical Sub-Committee, and SC3 Application Research and Technical Sub-Committee.