GB/T 41017-2021 Water reuse guidelines—Wastewater reclamation technologies and processes evaluation method

GB/T 18919-2002 The reuse of urban recycling water—Classified standard GB/T 18920-2002 The reuse of urban recycling water—Water quality standard for urban miscellaneous water consumption GB/T 18920-2020 The reuse of urban recycling water—Water quality standard for urban miscellaneous use GB/T 18921-2002 The reuse of urban recycling water—Water quality standard for scenic environment use GB/T 18921-2019 The reuse of urban recycling water—Water quality standard for scenic environment use GB/T 19772-2005 The reuse of urban recycling water quality standard for groundwater recharge GB/T 19923-2005 The reuse of urban recycling water—Water quality standard for industrial uses GB/T 19923-2024 Reuse of urban recycling water—Water quality standard for industrial uses GB 20922-2007 The reuse of urban recycling water—Quality of farmland irrigation water GB/T 21534-2008 Industrial water usage and conservation—Terminology GB/T 21534-2021 Water saving—Terminology GB/T 25499-2010 The reuse of urban recycling water—Water quality standard for green space irrigation HJ 493-2009 Water quality: Sample preservation and management technical regulations HJ 494-2009 Water quality sampling technical guidance HJ 495-2009 Water quality sampling plan design technical guidance