1.范围1。1总的来说，本标准涵盖了一次通过的高效空气净化组件，用于将核电厂的放射性微粒和放射性碘排放保持在许可限值以下。本标准确定并确定了以下组成高效空气净化组件的任何或所有部件的设计、制造、安装和运行前验收测试的最低要求:（a）水分分离器；（b） 空气加热器；（c） 预过滤器；（d） 高效空气过滤器；（e） 吸附器； （f） 过滤器外壳；（g） 装配管道系统和阻尼器；（h） 测试设备；以及（i）运行参数监测设备。图1和图2示意性地说明了典型的高效空气清洁组件。核电厂需要高效核空气净化系统的程度必须根据CSA标准N288中概述的具体情况确定。3.1.1.2适用于其他核设施本标准可用于规定要求或提供空气过滤器设计指南- 清洁组件，包含部分或全部上述空气清洁组件，以及其他核设施，如研究反应堆、燃料制造和后处理设施；（b） 放射性废物管理；（c） 放射性核素的生产、研究和处理；（d）铀矿的开采和研磨。1.3限制本标准不包括（a）惰性气体、气态碳14和氚的去除；以及（b）空气净化组件外部的部件，如管道系统、风扇和风门。 注:本标准以SI（公制）单位列出所有数值，括号中包含码磅当量，仅供参考。

1. Scope1.1General This Standard covers once-through high efficiency air-cleaning assemblies for maintaining radioactive particulate and radioiodine releases below licenced limits in nuclear power plants. The Standard identifies and establishes minimum requirements for the design, manufacture, installation, and preoperational acceptance testing for any or all of the following components that make up a high efficiency air-cleaning assembly: (a) moisture separators; (b) air heaters; (c) prefilters; (d) HEPA filters; (e) adsorbers; (f) filter housings; (g) assembly ductwork and dampers; (h) testing equipment; and (i) monitoring equipment for operational parameters.Figures 1 and 2 schematically illustrate typical high efficiency air-cleaning assemblies.The extent to which high efficiency nuclear air-cleaning systems are required in nuclear plants must be determined on a case-by-case basis as outlined in CSA Standard N288.3.1.1.2Applicability in Other Nuclear Facilities This Standard may be used to specify requirements or provide a guideline for the design of air-cleaning assemblies, containing some or all of the aforementioned air-cleaning components, and in other nuclear facilities, such as research reactors, facilities for (a) fuel manufacturing and reprocessing; (b) radioactive waste management; (c) production, research, and handling of radionuclides; and (d) mining and milling of uranium ore.1.3Limitations This Standard does not cover (a) removal of noble gases, gaseous carbon 14, and tritium; and (b) components outside the air-cleaning assembly such as ductwork, fans, and dampers. Note: This Standard lists all values in SI (metric) units and contains yard-pound equivalents in parentheses for information only.