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BSI PD ISO/TS 17420-9:2021

BSI PD ISO/TS 17420-9:2021

$189.07

Respiratory protective devices. Performance requirements – Special application chemical, biological, radiological and nuclear (CBRN) supplied breathable RPD

Published By Publication Date Number of Pages
BSI 2021 50
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This document specifies the requirements for respiratory protective devices for use by workers during response to incidents involving chemical, biological, radiological or nuclear (CBRN) materials used with intent to cause harm or in cases of accidental release outside traditional hazardous materials response categories. For the purposes of this specification, all incidents described here are named CBRN incidents.

This document is applicable to RPD for use by personnel in the following roles:

  • First responders: including police, fire service, emergency medical, search and rescue, sampling and detection teams.

  • Workers needed for specific roles during response (utility, transportation, service continuity).

  • Medical personnel working with casualties of CBRN incidents.

  • Responders to release incidents involving nuclear materials.

  • Non-emergency but CBRN-related roles.

  • Workers in need of protection during escape from a CBRN or radiological release incident.

  • Workers in need of protection from nuclear materials.

The requirements for RPD use by the following groups are not addressed by this document:

  • Military personnel outside of first responder roles.

  • Children.

  • Animals.

Requirements for the following are not covered by this document:

  • Collective protection systems including ventilated casualty/body bags.

  • Methods of and criteria for decontamination of RPD.

  • Disposal of used or contaminated equipment.

This document is focused on respiratory protection requirements, but it is recognised that CBRN RPD are always used as part of an ensemble with protective clothing. The total ensemble effectiveness is not covered by this document.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 Foreword
8 Introduction
9 1 Scope
10 2 Normative references
3 Terms, definitions and abbreviations
3.1 Terms and definitions
12 3.2 Abbreviated terms
4 Designation and classification
4.1 General
13 4.2 CBRN RPD
4.2.1 Special application CBRN1
4.2.2 Special application CBRN2
4.2.3 Special application CBRN3
4.3 Special application Escape CBRN
14 4.4 CBRN RPD summary of capabilities
4.5 CBRN RPD Classes
4.5.1 General
4.5.2 CBRN supplied breathable gas RPD
4.5.3 Escape CBRN supplied breathable gas RPD
15 5 Requirements
5.1 General
5.2 Test samples
5.3 CBRN RPD requirements
5.3.1 CBRN RPD operation
5.3.2 CBRN supplied breathable gas RPD
17 5.3.3 Escape CBRN supplied breathable gas RPD
18 6 Pre-conditioning
6.1 General
6.2 Sample preparation for pre-conditioning
19 6.3 Components excluded from pre-conditioning
6.4 CBRN RPD — Specific temperature and humidity pre-conditioning
20 7 CBRN supplied breathable gas RPD
7.1 Requirements for supplied breathable gas CBRN RPD
7.1.1 General
21 7.1.2 Protection Class
7.1.3 Correspondence with hazardous materials firefighting RPD
7.1.4 Provision of breathable gas
7.1.5 Temperature of operation
22 7.1.6 Chemical agent resistance
23 7.1.7 Practical performance testing
7.2 Requirements for supplied breathable gas CBRN RPD components
7.2.1 Connections
7.2.2 Resistance to permeation of breathable gas cylinders by liquid HD
24 8 Escape CBRN supplied breathable gas RPD
8.1 General
8.2 Requirements for Escape CBRN supplied breathable gas RPD
8.2.1 Determination of Escape CBRN supplied breathable gas RPD duration, t
25 8.2.2 Escape RPD performance requirements
8.2.3 Protection class
8.2.4 Chemical agent resistance for Escape CBRN supplied breathable gas RPD
26 8.2.5 Breathable gas cylinder permeation
8.2.6 Practical performance testing
9 Combined and multi-functional RPD
9.1 General
27 9.2 Combined RPD
9.3 Multi-functional RPD
9.4 Requirements – Escape CBRN combined with other RPD classes
10 Optional features
10.1 General
10.2 Optional connectors
28 10.3 Hydration
11 Training RPD and components
12 Reliability
13 Inspection and practical performance testing
14 Test methods
14.1 General
29 14.2 Chemical agent penetration and permeation tests
14.2.1 General
14.2.2 Materials
30 14.2.3 Test equipment
32 14.2.4 Preparation
34 14.2.5 Chemical agent tests
42 14.2.6 Test report
14.3 Mustard (HD) liquid permeation test for cylinder materials
14.3.1 General
14.3.2 Cylinder material swatch test method
43 14.3.3 Calculation of agent concentration in cylinder from swatch test
44 14.3.4 Test report
45 15 Marking
15.1 General
15.2 CBRN RPD component marking
15.3 Escape CBRN RPD marking
16 Information supplied by the manufacturer
16.1 General
16.2 CBRN RPD information
46 Annex A (informative) Number of samples and test schedules
47 Annex B (informative) Application of uncertainty of measurement
49 Bibliography

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