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17/30348250 DC BS EN 12941. Respiratory protective devices. Powered filtering devices incorporating a loose fitting respiratory interface. Requirements, testing, marking, 2017
- 12491.pdf [Go to Page]
- Contents Page
- 1 Scope
- 2 Normative references
- 3 Terms, definitions, description, abbreviations and symbols [Go to Page]
- 3.1 Terms, definitions and abreviations
- 3.2 Description
- 3.3 Symbols
- 4 Designation
- 5 Classification
- 6 Requirements [Go to Page]
- 6.1 General
- 6.2 Nominal values and tolerances
- 6.3 Ergonomics
- 6.4 Design
- 6.5 Materials [Go to Page]
- 6.5.1 General
- 6.5.2 Skin compatibility
- 6.6 Mechanical stress (optional)
- 6.7 Resistance to temperature
- 6.8 Respiratory Interface (RI) [Go to Page]
- 6.8.1 General
- 6.8.2 Head harness
- 6.8.3 Visor
- 6.9 Inward leakage
- 6.10 Breathing resistance
- 6.11 Air supply
- 6.12 Warning facilities [Go to Page]
- 6.12.1 General
- 6.12.2 Low energy warning
- 6.12.3 Low flow warning
- 6.13 Electrical components
- 6.14 Breathing hose, if applicable, and couplings [Go to Page]
- 6.14.1 General
- 6.14.2 Strength of coupling to RI
- 6.15 Filters [Go to Page]
- 6.15.1 Particle filters - Classification and designation
- 6.15.2 Gas filters [Go to Page]
- 6.15.2.1 Classification and designation
- 6.15.2.2 Types of filters
- 6.15.2.3 Classes of filters - Types A, B, E, and K
- 6.15.2.4 Combined filters
- 6.15.3 Filter requirements [Go to Page]
- 6.15.3.1 General
- 6.15.3.2 Materials
- 6.15.3.3 Mechanical strength - Filter
- 6.15.3.4 Protection efficiency/capacity
- 6.15.3.5 Multiple filters
- 6.16 Noise level
- 6.17 Carbon dioxide content of the inhalation air
- 6.18 Flammability
- 6.19 Exhalation means, if applicable
- 6.20 Total mass of RPD
- 6.21 Practical performance
- 7 Testing [Go to Page]
- 7.1 Test schedule
- 7.2 Temperature conditioning [Go to Page]
- 7.2.1 RPD components including filters
- 7.2.2 Particle filters and gas filters
- 7.3 Inspection
- 7.4 Inward leakage
- 7.5 Field of vision
- 7.6 Visor robustness
- 7.7 Breathing resistance
- 7.8 Air supply flow rate [Go to Page]
- 7.8.1 Principle
- 7.8.2 Test equipment
- 7.8.3 Preparation of RPD
- 7.8.4 Fitting the RPD into the apparatus
- 7.8.5 Air flow during initial flow rate [Go to Page]
- 7.8.5.1 RPD tested in accordance with Figure 5 or Figure 6
- 7.8.5.2 RPD tested in accordance to Figure 7
- 7.8.6 Air flow during intended duration and low energy warning
- 7.8.7 Low flow warning
- 7.9 Resistance to collapse of breathing hose [Go to Page]
- 7.9.1 Principle
- 7.9.2 Apparatus
- 7.9.3 Procedure
- 7.10 Strength of hose and couplings and of connection between hood and breathing hose
- 7.11 Mechanical strength [Go to Page]
- 7.11.1 Test equipment
- 7.11.2 Test procedure
- 7.12 Filter performance testing [Go to Page]
- 7.12.1 General
- 7.12.2 Particle filter efficiency
- 7.12.3 Gas capacity [Go to Page]
- 7.12.3.1 General
- 7.12.3.2 Gas filters type A, B, E and K
- 7.12.3.3 Special filters
- 7.12.3.4 AX filters
- 7.12.3.5 SX filters
- 7.13 Carbon dioxide content of the inhalation air [Go to Page]
- 7.13.1 Principle
- 7.13.2 Test equipment
- 7.13.3 Procedure
- 7.13.4 Report
- 7.14 Practical performance [Go to Page]
- 7.14.1 Test subjects
- 7.14.2 Test conditions
- 7.14.3 Procedure
- 7.14.4 Test report
- 8 Marking [Go to Page]
- 8.1 General
- 8.2 RI
- 8.3 Blower-unit and battery casing (if separate from the blower-unit)
- 8.4 Filters [Go to Page]
- 8.4.1 General
- 8.4.2 Gas and combined filters
- 8.4.3 Combined filters
- 8.5 Filter package
- 8.6 RPD packages
- 9 Information supplied by the manufacturer [Go to Page]
- 9.1 Complete RPD
- 9.2 Filters
- Annex ZA (informative)Relationship between this European Standard and the basic health and safety requirements of EU Directive 89/686/EEC on Personal Protective Equipment aimed to be covered [Go to Page]