{"id":327734,"date":"2024-10-19T22:46:22","date_gmt":"2024-10-19T22:46:22","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-48562018\/"},"modified":"2024-10-25T21:30:35","modified_gmt":"2024-10-25T21:30:35","slug":"bs-en-48562018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-48562018\/","title":{"rendered":"BS EN 4856:2018"},"content":{"rendered":"

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.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
6<\/td>\nIntroduction <\/td>\n<\/tr>\n
7<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
8<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
10<\/td>\n4 Classification
4.1 Design types
4.1.1 Compressed air EBS <\/td>\n<\/tr>\n
11<\/td>\n4.1.2 Rebreather EBS
4.1.3 Hybrid rebreather EBS <\/td>\n<\/tr>\n
12<\/td>\n4.2 Performance levels
4.2.1 Category A EBS
4.2.2 Category B EBS
5 Performance requirements
5.1 General
5.2 Design <\/td>\n<\/tr>\n
13<\/td>\n5.3 Materials <\/td>\n<\/tr>\n
14<\/td>\n5.4 Compatibility
5.5 Breathing performance
5.5.1 General
5.5.2 Work of breathing <\/td>\n<\/tr>\n
15<\/td>\n5.5.3 Respiratory pressures
5.5.4 Hydrostatic imbalance
5.5.5 Extreme cold water temperatures
5.6 Safety devices
5.7 Deployment <\/td>\n<\/tr>\n
16<\/td>\n5.8 Ease of use and manoeuvrability in water
5.9 Buoyancy
5.10 Cold water performance <\/td>\n<\/tr>\n
17<\/td>\n6 Testing
6.1 Visual inspection
6.2 Nominal values and tolerances
6.3 Magnetic properties testing
6.4 Temperature cycling <\/td>\n<\/tr>\n
18<\/td>\n6.5 Breathing performance <\/td>\n<\/tr>\n
20<\/td>\n6.6 Breathable volume of counterlung <\/td>\n<\/tr>\n
21<\/td>\n6.7 Buoyancy
6.8 Ergonomic performance
6.8.1 General <\/td>\n<\/tr>\n
22<\/td>\n6.8.2 Test subjects <\/td>\n<\/tr>\n
23<\/td>\n6.8.3 Deployment <\/td>\n<\/tr>\n
24<\/td>\n6.8.4 Ease of use, manoeuvrability and helicopter escape <\/td>\n<\/tr>\n
25<\/td>\n6.8.5 Escape buoyancy <\/td>\n<\/tr>\n
26<\/td>\n6.9 Cold water performance <\/td>\n<\/tr>\n
27<\/td>\n6.10 Crew equipment compatibility <\/td>\n<\/tr>\n
29<\/td>\n6.11 Reporting
7 Marking <\/td>\n<\/tr>\n
30<\/td>\n8 Information supplied by the manufacturer <\/td>\n<\/tr>\n
31<\/td>\nAnnex A (normative)Rating of breathing effort
A.1 Instruction <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Rotorcraft. Emergency Breathing Systems (EBS). Requirements, testing and marking<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2018<\/td>\n34<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":327743,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-327734","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/327734","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/327743"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=327734"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=327734"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=327734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}