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BS EN 4862:2023

BS EN 4862:2023

$198.66

Aerospace series. Rotorcraft constant wear lifejackets. Requirements, testing and marking

Published By Publication Date Number of Pages
BSI 2023 64
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This document specifies requirements for constant wear lifejackets for use by helicopter crew members and passengers in the event of a ditching or water impact, to ensure minimum levels of performance. It only applies to constant wear lifejackets for use by adults and that are intended to be manually inflated after leaving the helicopter. Helicopter constant wear lifejackets are sometimes designed to be worn with or without a helicopter immersion suit and/or emergency breathing system.

PDF Catalog

PDF Pages PDF Title
2 undefined
11 1 Scope
2 Normative references
12 3 Terms and definitions
15 4 Description
16 5 Requirements
5.1 General
5.2 Design
5.3 Materials and components
5.3.1 Metallic components
5.3.2 Sewing thread
17 5.3.3 Fabric
19 5.3.4 Structural webbing and tie tapes
5.3.5 Structural lacing
5.3.6 Structural zippers
5.3.7 Hardware
5.3.8 Inflation system components
5.3.8.1 Manual inflation system
5.3.8.2 Oral inflation system
5.3.9 Inflation chamber materials
5.3.10 Overpressure relief valve
5.3.11 Gas cylinders
5.4 Accessories
5.4.1 General
20 5.4.2 Sprayhood
21 5.4.3 Survivor locator light
5.4.4 Whistle
5.4.5 Lifting loop
22 5.4.6 Buddy line
5.4.7 EBS
5.4.8 Other optional accessories
23 5.5 Physical performance of device
5.5.1 Resistance to temperature variation
5.5.2 Wear and tear
5.5.3 Inflation
5.5.3.1 General
5.5.3.2 Manual inflation
5.5.3.3 Operation of manual inflation system
24 5.5.3.4 Oral inflation
5.5.4 Strength
5.5.5 Buoyancy
5.5.6 Overpressure
25 5.5.7 Flammability
5.5.8 Resistance to fuel
5.5.9 Torque
5.6 Conspicuity
5.6.1 General
5.6.2 Retroreflective material
26 5.7 Ergonomic performance
5.7.1 Donning and fit
5.7.2 Ride-up
5.7.3 Helicopter escape
5.7.4 Jump into water
5.7.5 Flotation angles and freeboard
27 5.7.6 Self-righting
5.7.7 In-water stability
5.7.8 Field of vision
5.7.9 Freedom of movement and use of accessories
5.7.10 Life raft boarding
28 5.7.11 Rescue and recovery
5.8 Compatibility
5.8.1 General
5.8.2 Performance of equipment combination(s)
5.8.2.1 General
29 5.8.2.2 Donning and fit
5.8.2.3 Ride-up
5.8.2.4 Helicopter escape
5.8.2.5 Jump into water
5.8.2.6 Freeboard
5.8.2.7 Turning
5.8.2.8 Self-righting
30 5.8.2.9 In-water stability
5.8.2.10 Field of vision
5.8.2.11 Freedom of movement and use of accessories
5.8.2.12 Life raft boarding
31 5.8.2.13 Rescue and recovery
5.8.2.14 Escape buoyancy
6 Testing
6.1 Visual inspection
6.2 Nominal values and tolerances
6.3 Order of testing
6.4 Magnetic properties testing
6.5 Temperature cycling
32 6.6 Wear and tear
34 6.7 Retroreflective material application
6.8 Inflation
36 6.9 Strength tests
6.9.1 Horizontal and vertical load
6.9.1.1 General
6.9.1.2 Horizontal load test procedure
38 6.9.1.3 Vertical load test procedure
40 6.9.2 Lifting loop test
6.9.3 Buddy line
41 6.9.4 Strength test of attachment points
6.10 Buoyancy of device
42 6.11 Overpressure test
43 6.12 Flammability
44 6.13 Resistance to fuel
45 6.14 Sprayhood gas exchange test
6.15 Torque test
47 6.16 Ergonomic performance
6.16.1 General
48 6.16.2 Test subjects
50 6.16.3 Donning and fit
6.16.4 Ride-up assessment
6.16.5 Helicopter underwater escape
51 6.16.6 Jump into water
6.16.7 Flotation angles
6.16.8 Freeboard
52 6.16.9 Turning
6.16.10 Self-righting
53 6.16.11 In-water stability test for lifejackets
6.16.12 Field of vision
54 6.16.13 Colour
6.16.14 Freedom of movement and use of accessories
55 6.16.15 Life raft boarding
6.16.16 Rescue and recovery
56 6.16.17 Escape buoyancy
57 6.17 Compatibility and performance of equipment combination(s)
6.17.1 General
6.17.2 Test subjects
6.17.3 Clothing
6.17.4 Compatibility and immersion suit system performance testing
58 6.18 Crew equipment compatibility
59 6.19 Reporting
7 Marking
60 8 Information supplied by the manufacturer

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BS EN 4862:2023
$198.66