本英国标准规定了双模装置（组合式或多功能）的要求， 将BS 8468-1、BS 8468-2、BS 8468-4和BS 8468-6.1中规定的两种仪器组合在一起 或BS 8468-6.2，用于救援、疏散、逃生、危险控制和 由急救人员（如消防、救护车、警察、， 以及相关的民用机构和工作人员）在含有化学品和受化学品污染的区域， 生物、放射性和核（CBRN）试剂。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This British Standard specifies requirements for dual-mode apparatus (combined or multifunctional), combining two of the types of apparatus specified in BS 8468-1, BS 8468-2, BS 8468-4, BS 8468-6.1 or BS 8468-6.2, intended to be used during rescue, evacuation, escape, hazard containment and decontamination, and similar activities by emergency first responders (e.g. fire, ambulance, police, and associated civilian agencies and workers) in areas containing and contaminated by chemical, biological, radiological and nuclear (CBRN) agents.All current amendments available at time of purchase are included with the purchase of this document.