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BSI PD CEN/TS 17553:2022

BSI PD CEN/TS 17553:2022

$71.25

Textiles and textile products – Community face coverings. Minimum requirements, methods of testing and use

Published By Publication Date Number of Pages
BSI 2022 56
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This document specifies the minimum requirements for reusable or single use community face coverings intended for the general public, covering the nose, mouth and chin (for minimum coverage area, see Figure 2) in order to reduce the risk of droplet/aerosol projection towards nearby people. These requirements include: — innocuousness, — design (including fit), — performance, — test methods, — marking, — packaging, — information for use. Figure 2 — Community face coverings minimum coverage area (dark area) These requirements are applicable to: — community face coverings made of one or multiple fabric layers (including woven, knitted, nonwoven), and including community face coverings with a removable filter in between the layers; — community face coverings including a transparent window which allows for the wearer’s mouth and facial expressions to be seen, in order to facilitate full facial recognition, lip reading and/or sign language alongside other methods of communication (see A.6); — structured community face coverings including moulded plastic shells and rigid face coverings’ components. This document is not intended for community face coverings for children up to 4 years of age (it means until 3 years and 11 months) (see A.1). This document is not intended for medical face masks (medical devices specified in EN 14683), nor for filtering masks to protect against particles (personal protective equipment specified in EN 149). This document excludes impermeable nose and mouth shields (including visors) and face coverings incorporating inhalation and/or exhalation valve(s) (see A.2).

PDF Catalog

PDF Pages PDF Title
2 undefined
9 1 Scope
10 2 Normative references
3 Terms and definitions
13 4 Requirements
4.1 General
4.2 Innocuousness
14 4.3 Design
4.3.1 General
4.3.2 Dimensions / Sizing
15 4.3.3 Head harness
16 4.3.4 Nose bridge
4.3.5 Community face coverings with transparent window
4.4 Materials
17 4.5 Breathability
4.5.1 General
4.5.2 Differential pressure of material or material assembly
4.5.3 Breathing resistance of the complete community face covering
4.6 Filtration efficiency
18 4.7 Packaging
5 Durability (ageing)
5.1 General
5.2 Durability assessment (see A.8)
19 6 Test methods
6.1 General
6.2 Visual inspection
6.3 Breathability test methods (see A.3)
6.3.1 Differential pressure of material or material assembly
6.3.1.1 General
6.3.1.2 Test specimens
6.3.1.3 Procedure
20 6.3.1.4 Modified EN ISO 9237:1995
21 6.3.1.5 Test report of differential pressure
6.3.2 Breathing resistance of the complete community face covering
22 6.4 Filtration efficiency test
6.5 Head harness strength test
6.5.1 Apparatus
6.5.2 Test specimen
23 6.5.3 Procedure
24 6.5.4 Test report
7 Product information and packaging
7.1 General
25 7.2 Markings
7.3 Purchase information
26 7.4 Instructions of use
7.4.1 Requirements
7.4.2 Warnings
28 Annex A (informative)Rationale
A.1 Age limitation
A.2 Valves and nose and mouth shields
A.3 Breathability
A.4 Test aerosol
29 A.5 Filtration efficiency
30 A.6 Community face coverings with transparent window
A.7 Head harness
A.8 Durability (see 5.2)
A.9 Environmental impact (see 4.1, 4.4)
31 A.10 Biocides
A.11 Cleaning (see 4.1)
32 A.12 Do It Yourself (DIY)
33 Annex B (normative)Test method for the determination of the filtration efficiency as a function of the particle size
B.1 General
B.2 Principle
B.3 Aerosol
B.4 Apparatus
B.4.1 General
34 B.4.2 Aerosol generator
B.4.3 Balancing upstream and downstream
B.4.4 Aerosol spectrometer (see A.5)
36 B.5 Validation of the test rig (qualification testing)
B.6 Preparation of the test specimens
37 B.7 Conditioning and testing atmosphere
B.7.1 Condition of the test specimens
B.7.2 Testing atmosphere
B.8 Procedure
38 B.9 Calculation and expression of the results
B.10 Uncertainty of measurement
B.11 Test report
39 Annex C (normative)Special national conditions
40 Annex D (informative)Anthropometric data
D.1 Facial measurements
42 D.2 Human test panels for facial features – Examples
D.2.1 From a French survey
44 D.2.2 From Dutch surveys (online database)
45 Annex E (informative)Design considerations
E.1 General
46 E.2 Design considerations for diverse wearers
48 Annex F (informative)Practical performance assessment for checking the ergonomic features of community face coverings
F.1 General
F.2 Practical performance testing procedures
49 F.3 Parameters for practical testing for community face coverings
F.3.1 Free from harmful features
F.3.2 Community face coverings, putting on, taking off and fit
F.3.3 Operation of closures, adjustment and restraint systems
F.3.4 Coverage of the area intended to be covered, coverage maintained during movements
50 F.3.5 Freedom of movement
F.4 Reasons for concluding if a product is unacceptable
51 Annex G (informative)Topics for further investigations
G.1 Microorganisms
G.2 Cleaning
G.3 Sizing
G.4 Breathability
G.5 Filtration efficiency

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