Respiratory protective devices for use against chemical, biological, radiological and nuclear (CBRN) agents - Negative pressure, air purifying devices with full face mask. Specification Ingestion-build-63114 800 | ISO 7498-2:

800 | ISO 7498-2:

BS EN 60947-5-1:1998

This relates to an environment where an acoustic free field is near one or more reflecting planes

including those using direct or indirect heat transfer and liquid or gaseous heating media

Additional data to be reported in Clause 12

Respiratory protective devices for use against chemical, biological, radiological and nuclear (CBRN) agents - Negative pressure, air purifying devices with full face mask. Specification Ingestion-build-63114 800 | ISO 7498-2:1 Scope This British Standard specifies requirements for negative pressure air purifying devices (APDs) with full face mask intended to be used during rescue, evacuation, escape, hazard containment and decontamination, and similar activities by emergency responders (fire, ambulance, police, and associated civilian agencies and workers) in areas contaminated by chemical, biological, radiological and nuclear (CBRN) agents. This British Standard contains