本文件规定了工人在应对涉及化学、生物、放射性或核（CBRN）材料的事件时使用的呼吸防护装置的要求，这些材料的使用意图是造成伤害，或在传统危险材料响应类别之外意外释放的情况下。就本文件而言，此处描述的所有事件均被命名为CBRN事件。 本文件适用于RPD，供以下人员使用: -？急救人员:包括警察、消防、紧急医疗、搜索和救援、采样和检测团队。 -？响应期间特定角色（公用事业、运输、服务连续性）所需的工人。 -？处理CBRN事故伤亡人员的医务人员。 -？释放涉及核材料事件的响应者。 -？非紧急但与CBRN相关的角色。 -？从CBRN或放射性释放事件中逃生时需要保护的工人。 -？需要核材料保护的工人。 本文件未涉及以下群体使用RPD的要求: -？第一响应者角色之外的军事人员。 -？儿童。 -？动物。 本文件不包括以下要求: -？集体防护系统，包括通风的伤员/尸袋。 -？RPD去污的方法和标准。 -？废弃设备的处置。 本文件侧重于呼吸防护要求，但人们认识到，CBRN RPD始终作为防护服套装的一部分使用。本文件不包括整体效能。

This document specifies the requirements for respiratory protective devices for use by workers during response to incidents involving chemical, biological radiological or nuclear (CBRN) materials used with intent to cause harm or in cases of accidental release outside traditional hazardous materials response categories. For the purposes of this document, all incidents described here are named CBRN incidents. This document is applicable to RPD for use by personnel in the following roles: —？First responders: including police, fire service, emergency medical, search and rescue, sampling and detection teams. —？Workers needed for specific roles during response (utility, transportation, service continuity). —？Medical personnel working with casualties of CBRN incidents. —？Responders to release incidents involving nuclear materials. —？Non-emergency but CBRN-related roles. —？Workers in need of protection during escape from a CBRN or radiological release incident. —？Workers in need of protection from nuclear materials. The requirements for RPD use by the following groups are not addressed by this document: —？Military personnel outside of first responder roles. —？Children. —？Animals. Requirements for the following are not covered by this document: —？Collective protection systems including ventilated casualty/body bags. —？Methods of and criteria for decontamination of RPD. —？Disposal of used equipment. This document is focused on respiratory protection requirements, but it is recognised that CBRN RPD are always used as part of an ensemble with protective clothing. The total ensemble effectiveness is not covered by this document.