本文件规定了建立、实施和维护水效率管理系统的要求，并包含了使用指南。它适用于所有类型和规模的用水组织。它关注的是终端用户。 本文件适用于任何希望: a） 通过以下途径实现水的高效利用:？减少、替换或重复使用的方法； b） 建立、实施和维护用水效率； c） 不断提高用水效率。 本文件规定了有关组织用水的要求和使用指南。 它包括设备、系统、流程和人员培训的监控、测量、文件编制、报告、设计和采购实践，这些都有助于水效率管理。 注1？“减少”包括使用节水型配件和设备，例如，为使用和泄漏检测建立适当的监测系统。 注2？“替代”包括在可行的情况下用再生水、海水和雨水替代饮用水。 注3？“再利用”包括回收，例如，工艺用水或灰水。对于利用水再利用系统，ISO/TC 282文件可被称为指南。 注4:附件中的指南提供了支持实施的其他实用信息。附录A提供了本文件的使用指南，附录B给出了水效率方面的情景示例。

This document specifies requirements and contains guidance for its use in establishing, implementing and maintaining a water efficiency management system. It is applicable to organizations of all types and sizes that use water. It is focused on end-use consumers. This document is applicable to any organization that wishes to: a) achieve the efficient use of water through the?reduce, replace or reuse' approach; b) establish, implement and maintain water efficiency; c) continually improve water efficiency. This document specifies requirements and contains guidance for its use regarding organizational water use. It includes monitoring, measurement, documentation, reporting, design and procurement practices for equipment, systems, processes and personnel training that contribute to water efficiency management. NOTE 1?Reduce' includes the use of water-efficient fittings and equipment and, for example, putting in place a proper monitoring system for usage and leak detection. NOTE 2?Replace' includes substitution of drinking water with reclaimed water, sea water and rainwater wherever feasible. NOTE 3?Reuse' includes recycling of, for example, process water or grey water. For utilizing water reuse systems, ISO/TC 282 documents can be referred to as guidelines. NOTE 4 Guidance in the annexes provides additional practical information to support implementation. Annex A provides guidance on the use of this document and Annex B gives examples of scenarios in water efficiency.