BS 8468-3.2:2020 pdf free.Respiratory protective devices for use against chemical, biological, radiological and nuclear (CBRN) agents Air-purifying devices incorporating a hood for escape一Specification.
BS 8468-3.2 This British Standard specifies the requirements for air-purifying devices incorporating a hood intended to be used only during escape by emergency responders (e.g. fire, ambulance, police) and adult civilians from areas contaminated by chemical, biological, radiological and nuclear (CBRN) agents.This British Standard is applicable to Type ES CBRN devices. Type ES CBRN devices provide resistance to liquid and gaseous chemical agent permeation and penetration and provide protection capability against hazardous particulate matter.
This British Standard contains requirements for classification, testing and marking of the device.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 EN 134, Respiratory protective devices – Nomenclature of components BS EN 143:2000, Respiratory protective devices – Particle filters – Requirements, testing, marking BS EN 403:2004, Respiratory protective devices for self-rescue – Filtering devices with hood for escape from fire – Requirements, testing, marking BS EN 13274-4:2001, espiratory protective devices – Methods of test – Part 4: Flame tests BS EN ISO 16972, Respiratory protective devices – Vocabulary and graphical symbols. The complete device for use against CBRN agents shall be an air-purifying escape device incorporating a hood conforming to BS EN 403:2004, except for the requirements in BS EN 403:2004,6.10 and 6.11 for both types and except for the requirements in BS EN 403:2004, 6.14, 6.19 and 6.21 for Type 1.The complete device for use against CBRN agents shall also meet the requirements specified in 5.2 to 5.6 of this British Standard.In addition, Type 1 devices shall pass the single-burner, moving specimen test, method 3 in accordance with BS EN 13274-4:2001.In all tests, all test samples shall meet the requirements.BS 8468-3.2 pdf download.