BS EN 4856:2018

$167.15

Rotorcraft. Emergency Breathing Systems (EBS). Requirements, testing and marking

Published By	Publication Date	Number of Pages
BSI	2018	34

Guaranteed Safe Checkout

Category: BSI

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

This document specifies requirements for Emergency Breathing Systems (EBS) for use by helicopter crew and passengers in the event of a ditching or water impact, to ensure minimum levels of performance. It applies to EBS for use by adults only. Two categories of EBS are addressed by this standard; Category A EBS capable of being successfully deployed in air and underwater and Category B EBS capable of being successfully deployed in air but not underwater. This document is applicable to compressed air, rebreather and hybrid rebreather designs of EBS.

PDF Catalog

PDF Pages	PDF Title
2	undefined
6	Introduction
7	1 Scope 2 Normative references
8	3 Terms and definitions
10	4 Classification 4.1 Design types 4.1.1 Compressed air EBS
11	4.1.2 Rebreather EBS 4.1.3 Hybrid rebreather EBS
12	4.2 Performance levels 4.2.1 Category A EBS 4.2.2 Category B EBS 5 Performance requirements 5.1 General 5.2 Design
13	5.3 Materials
14	5.4 Compatibility 5.5 Breathing performance 5.5.1 General 5.5.2 Work of breathing
15	5.5.3 Respiratory pressures 5.5.4 Hydrostatic imbalance 5.5.5 Extreme cold water temperatures 5.6 Safety devices 5.7 Deployment
16	5.8 Ease of use and manoeuvrability in water 5.9 Buoyancy 5.10 Cold water performance
17	6 Testing 6.1 Visual inspection 6.2 Nominal values and tolerances 6.3 Magnetic properties testing 6.4 Temperature cycling
18	6.5 Breathing performance
20	6.6 Breathable volume of counterlung
21	6.7 Buoyancy 6.8 Ergonomic performance 6.8.1 General
22	6.8.2 Test subjects
23	6.8.3 Deployment
24	6.8.4 Ease of use, manoeuvrability and helicopter escape
25	6.8.5 Escape buoyancy
26	6.9 Cold water performance
27	6.10 Crew equipment compatibility
29	6.11 Reporting 7 Marking
30	8 Information supplied by the manufacturer
31	Annex A (normative)Rating of breathing effort A.1 Instruction

Additional information

Status	Withdrawn
Title	Rotorcraft. Emergency Breathing Systems (EBS). Requirements, testing and marking
Publisher	BSI
Committee	ACE/1/-/3
Pages	34
Publication Date	2018-12-20
Withdrawn Date	2023-03-01
Replaced By	BS EN 4856:2023
ISBN	978 0 539 00223 2
Standard Number	BS EN 4856:2018
Identical National Standard Of	EN 4856:2018
Descriptors	Pollutant gases, Particulate air pollutants, Air safety, Thermal comfort, Air transport engineering, Microorganisms, Passenger aircraft, Quality, Air transport, Air pollution, Aircraft, Testing conditions, Air, Dangerous materials, Personal health
ICS Codes	49.095 - Passenger and cabin equipment

Preview PDF


PDF Format	Searchable	Printable	Preview Now

BS EN 4856:2018

PDF Catalog

Related products