1.1 本规程涵盖了反渗透（RO）系统的渗透流量、盐通道和性能数据系数的标准化。 1.2 本规程适用于包括微咸水和海水在内的水域，但不一定适用于废水。 1.3 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 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）。本标准的用户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（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 在反渗透系统的操作过程中，系统条件（如压力、温度、转化率和进料浓度）可能会发生变化，导致渗透流量和盐通道发生变化。为了有效评估系统性能，有必要在相同条件下比较渗透流量和盐通道数据。由于数据可能并不总是在相同的条件下获得，因此有必要将在实际条件下获得的RO数据转换为一组选定的恒定条件，从而使数据标准化。本规程给出了RO数据标准化的程序。 5.2 这种做法可用于螺旋缠绕和中空纤维系统。 5.3 这种做法可用于单个元件或多元件系统。然而，如果反渗透系统是盐水阶段，即来自一组反渗透装置的盐水是第二组反渗透装置的进料，则分别对每一阶段的渗透流量和盐通道进行标准化。 5.4 本规程适用于高截留率的反渗透系统，且进料盐水和渗透液流之间无明显泄漏。

1.1 This practice covers the standardization of permeate flow, salt passage, and coefficient of performance data for reverse osmosis (RO) systems. 1.2 This practice is applicable to waters including brackish waters and seawaters but is not necessarily applicable to waste waters. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 During the operation of an RO system, system conditions such as pressure, temperature, conversion, and feed concentration can vary, causing permeate flow and salt passage to change. To effectively evaluate system performance, it is necessary to compare permeate flow and salt passage data at the same conditions. Since data may not always be obtained at the same conditions, it is necessary to convert the RO data obtained at actual conditions to a set of selected constant conditions, thereby standardizing the data. This practice gives the procedure to standardize RO data. 5.2 This practice can be used for both spiral wound and hollow fiber systems. 5.3 This practice can be used for a single element or a multi-element system. However, if the RO system is brine staged, that is, the brine from one group of RO devices is the feed to a second group of RO devices, standardize the permeate flow and salt passage for each stage separately. 5.4 This practice is applicable for RO systems with high rejections and with no significant leaks between the feed-brine and permeate streams.