1.1 本指南涵盖了如果考虑通过电渗析/电渗析逆转进行处理，则应对任何给定的水进行的测定。 1.2 本指南适用于所有水域，但不一定适用于废水。 1.3 这只是一个指南，不应被解释为对特定应用所需的所有分析的完整描述。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ===意义和用途====== 5.1 电渗析/电渗析反向系统的设计由给水的成分和产品水的所需成分决定。本指南中进行的确定和测量将为分期和功耗的设计预测提供必要的信息。 5.2 电渗析/电渗析反向系统可以安全操作的回收率取决于进料溶液的组成。本指南中进行的测定测量将为使用特定给水的系统的最大回收率的计算提供数据。 5.3 本指南中进行的测定和测量将有助于确定所需的预处理，以满足特定给水对特定产品水的要求。

1.1 This guide covers the determinations that should be performed on any given water if processing by electrodialysis/electrodialysis reversal is being considered. 1.2 This guide is applicable to all waters but is not necessarily complete for wastewaters. 1.3 This is a guide only and should not be construed as a complete delineation of all analysis required for a specific application. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The design of an electrodialysis/electrodialysis reversal system is determined by the composition of the feedwater and the desired composition of the product water. The determinations and measurements performed in this guide will provide the necessary information for making design projections of staging and power consumption. 5.2 The recovery at which an electrodialysis/electrodialysis reversal system can be safely operated is dependent on the composition of the feed solution. The determinations measurements performed in this guide will provide data for the calculation of the maximum recovery of a system utilizing a specific feed water. 5.3 The determinations and measurements performed in this guide will be valuable for determining needed pretreatment for meeting specific product water requirements with the specific feed water.