This standard is formulated for the purpose of implementing relevant national laws, regulations, guidelines and policies, improving the indoor environment of public buildings, and improving energy utilization efficiency. This standard applies to the energy-saving design of new construction, reconstruction and expansion of public buildings.
GB 50189-2005 history
2015GB 50189-2015 Design standard for energy efficiency of public buildings
2005GB 50189-2005 Design standard for energy efficiency of public buildings
1993GB 50189-1993 Energy conservation design standard on building envelope and air conditioning for tourist hotels