Respiratory protective devices for use against chemical, biological, radiological and nuclear (CBRN) agents - Powered air purifying respirators. Specification Ingestion-build-135476 The principle of the test

The principle of the test is explained briefly in annex A

pollution distribution

Note: BS IEC 60092-509 does not apply to ordinary persons when using installations and equipment

the following aspects are taken into account :

Respiratory protective devices for use against chemical, biological, radiological and nuclear (CBRN) agents - Powered air purifying respirators. Specification Ingestion-build-135476 The principle of the test1 Scope This British Standard specifies requirements for powered air purifying respirators (PAPRs) 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 requirements for