BS 8468-1:2020 pdf free.Respiratory protective devices for use against chemical, biological, radiological and nuclear (CBRN] agents .Positive pressure, self-contained, open-circuit breathing apparatus一Specification.
BS 8468-1 This British Standard specifies requirements for positive pressure, self-contained, open-circuit breathing apparatus (SCBA) intended to be used during fire-fighting, rescue, evacuation, escape,hazard containment and decontamination, and similar activities by emergency first responders (e.g. fire, ambulance, police, and associated cilian agencies and workers) in areas containing and contaminated by chemical, biological, radiological and nuclear (CBRN) agents.This British Standard contains requirements for testing and marking.Requirements for methods of and criteria for decontamination of respiratory protective devices (RPD) are not covered in this British Standard.This British Standard is applicable to Type CBRN3 devices. Type CBRN3 devices provide protection against hazardous particular matter and gaseous and liquid chemical agent permeation and penetration.NOTE SCBA conforming to this British Standard is also suitable for use in situations other than those involving the specific CBRN agents identified in this British Standard.The following documents are referred to in the text in such a way that some or all of their content constitutes provisions of this document). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.BS 8468-8:2020, Respiratory protective devices for use against chemical, biological, radiological and nuclear (CBRN) agents一Part 8: Test methods BS EN 134, Respiratory protective devices一Nomenclature of components BS EN 136, Respiratory protective devices一Full face masks一Requirements, testing, marking BS EN 137 Respiratory protective devices一Self-contained open-circuit compressed air breathing apparatus with full face mask – – Requirements, testing, marking
BS EN 13274-1:2001, Respiratory protective devices一Methods of test一Part 1: Determination of inward leakage and total inward leakage BS EN JSO 16972, Respiratory protective devices一Vocabulary and graphical symbols.self-contained breathing apparatus which is designed to maintain the pressure in the mask above ambient pressure and in which the exhaled air passes, without recirculation, from the facepiece via the exhalation valve to the ambient atmosphere.BS 8468-1 pdf downlaod.