Respiratory protective devices for use against chemical, biological, radiological and nuclear (CBRN) agents - Constant flow compressed airline equipment. Specification Ingestion-build-258901 The following performance characteristics are

The following performance characteristics are linked to systems assembled with gypsum elements for suspended ceilings: fire resistance

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BS EN 60068-1 on guidance for environmental testing applies to:

Respiratory protective devices for use against chemical, biological, radiological and nuclear (CBRN) agents - Constant flow compressed airline equipment. Specification Ingestion-build-258901 The following performance characteristics are1 Scope This British Standard specifies requirements for compressed air line breathing apparatus with constant airflow as a respiratory protective device intended to be used during rescue, evacuation, escape, hazard containment and decontamination, and similar activities by emergency first responders or first receivers (e. g. fire, ambulance, police, and associated civilian agencies and workers) in areas containing and contaminated by chemical,