GB 50555-2010 Standard for water saving design in civil building

GB 55020-2021 Code for design of building water supply and drainage

GB 50015-2003 GB 50242-2002 Code for acceptance of construction quality of Water supply drainage and heating works GB 50336-2002 GB 50400-2006 GB/T 778.1-2007 Measurement of water flow in fully charged closed conduits—Meters for cold potable water and hot water—Part 1:Specifications GB/T 778.2-2007 Measurement of water flow in fully charged closed conduits—Meters for cold potable water and hot water—Part 2:Installation requirements GB/T 778.3-2007 Measurement of water flow in fully charged closed conduits—Meters for cold potable water and hot water—Part 3:Test methods and equipment GB/T 18920-2002 The reuse of urban recycling water—Water quality standard for urban miscellaneous water consumption GB/T 18921-2002 The reuse of urban recycling water—Water quality standard for scenic environment use CJJ/T 81-1998 CJJ 110-2006 JJG 162-2009 CJ/T 133-2007 Integrated circuit card water meter CJ 164-2002 Domestic water saving devices CJ/T 224-2006 Electronic remote-reading water meter CJ 266-2008 Safety regulations for cold potable water meters