ISO 20760-1:2018提供了城市地区集中中水回用系统和中水回用应用的规划和设计指南。 ISO 20760-1:2018适用于打算以安全、可靠和可持续的方式实施集中用水原则和决策的从业者和当局。 ISO 20760-1:2018全面论述了集中式水再利用系统，并适用于任何水回收系统组件（如水源、处理、储存、分配、运行和维护及监控）。 ISO 20760-1:2018规定: -标准术语和定义； -集中中水回用系统的系统组件和可能的模型； -集中中水回用系统的设计原则； -水质指标的通用评估标准和相关示例，均未设定任何目标值或阈值； -考虑和应急响应的具体方面。 集中式水回用系统的设计参数和监管值不在本文件范围内。

ISO 20760-1:2018 provides guidelines for the planning and design of centralized water reuse systems and water reuse applications in urban areas. ISO 20760-1:2018 is applicable to practitioners and authorities who intend to implement principles and decisions on centralized water reuse in a safe, reliable and sustainable manner. ISO 20760-1:2018 addresses centralized water reuse systems in their entirety and is applicable to any water reclamation system component (e.g. source water, treatment, storage, distribution, operation and maintenance and monitoring). ISO 20760-1:2018 provides: - standard terms and definitions; - system components and possible models of a centralized water reuse system; - design principles of a centralized water reuse system; - common assessment criteria and related examples of water quality indicators, all without setting any target values or thresholds; - specific aspects for consideration and emergency response. Design parameters and regulatory values of a centralized water reuse system are out of the scope of this document.