T/CECS 10057-2019 Green building material assessment—Valves for building

GB/T 2589-1990 General principles for calculation of total production energy consumption GB/T 2589-2008 General principles for calculation of the comprehensive energy consumption GB/T 2589-2020 General rules for calculation of the comprehensive energy consumption GB/T 8464-1998 Valves with female screw ends for water-heating system GB/T 8464-2008 Cast iron and copper valves with screwed connections GB/T 8464-2023 Cast iron,copper and stainless steel valves with screwed connections GB/T 12235-1989 General purpose industrial valves—Flanged steel globe valves and lift check valves GB/T 12235-2007 Steel globe valves and lift check valve for petroleum,petrochemical and allied industries GB/T 12237-1989 General purpose industrial valves—Flanged and butt-weld end steel ball valves GB/T 12237-2007 Steel ball valves for petroleum,petrochemical and allied industries GB/T 12237-2021 Steel ball valves for petroleum, petrochemical and allied industries GB/T 19001-2000 Quality management systems—Requirements GB/T 19001-2008 Quality management systems—Requirements GB/T 19001-2016 Quality management systems—Requirements GB/T 24001-2004 Environmental management systems—Requirements with guidance for use GB/T 24001-2016 Environmental management systems—Requirements with guidance for use GB/T 33000-2016 Guideline of China occupational safety and health management system CJ/T 216-2005 Resilient-seated gate valves for water supply and drainage service CJ/T 216-2013 Resilient-seated gate valves for water supply and drainage service CJ/T 255-2007 Non-slam nozzle check valve CJ/T 261-2007 Butterfly valves for water supply and drainage CJ/T 261-2015 Butterfly valves for water supply and drainage GB/T 50841-2013 Standard of construction classification GB/T 33000-2025 Requirements of work safety management system for large and medium-sized enterprises GB/T 12235-2025 Steel globe valves and lift check valve for petroleum,petrochemical and allied industries