BS 8468-4:2020
$102.76
Respiratory protective devices for use against chemical, biological, radiological and nuclear (CBRN) agents – Powered air purifying respirators. Specification
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 22 |
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 designation, classification, testing and marking of the device.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 9 | 4 Classification 4.1 Types 4.2 Class |
| 10 | 5 Requirements 5.1 General 5.2 Temperature conditioning of filters 5.3 Preconditioning 5.4 Inward leakage |
| 11 | 5.5 Chemical agent permeation and penetration 5.6 Gas/vapour filters Table 1 — Breakthrough times |
| 12 | 5.7 Filter penetration – Particulate element 5.8 Mass supported by head and neck 6 Testing 7 Marking 7.1 General 7.2 Device |
| 13 | 7.3 Filters Figure 1 — Pictograms 7.4 Packaging |
| 14 | 8 Information supplied by the manufacturer |
| 15 | Annex A (normative) Schematic diagrams of droplet placement Figure A.1 — Schematic diagram of HD droplet placement on PAPR [face-mounted blower/filter(s) unit] |
| 16 | Figure A.2 — Schematic diagram of HD droplet placement on PAPR with drink tube [face-mounted blower/filter(s) unit] |
| 17 | Figure A.3 — Schematic diagram of HD droplet placement on PAPR with communicator [face-mounted blower/filter(s) unit] |
| 18 | Figure A.4 — Schematic diagram of HD droplet placement on PAPR [belt-mounted blower/filter(s) unit] facepiece with side hose connection |
| 19 | Figure A.5 — Schematic diagram of HD droplet placement on PAPR [belt-mounted blower/filter(s) unit] facepiece with central hose connection |
| 20 | Figure A.6 — Schematic diagram of HD droplet placement on PAPR hood (including inner mask) and belt-mounted blower/filter(s) unit |
| 21 | Figure A.7 — Schematic diagram of HD droplet placement on PAPR hood (without an inner face mask) and belt-mounted blower/filter(s) unit |
