BS EN 16139-2013 pdf download

08-04-2021 comment

BS EN 16139-2013 pdf download.Furniture – Strength , durability and safety Requirements for non-domestic seating.
This BS EN 16139 does not apply to ranked seating, office work chairs, chairs for educational institutions, outdoor seating and to links for linked seating for which European Standards or drafts exist. It does also not apply to work chairs for industrial use.
This European Standard does not include requirements for the durability of upholstery materials, castors, reclirng and tifting mechanisms and seat height adjustment mechanisms.
This European Standard does not include requirements for the resistance to ageing, degradation and flammability,
Annex A contains additional tests.
Annex B contains information on the level of test severity in relation to applications.
Annex C contains dimensional requirements for office visitor chairs.
2 Normative references
The following documents, in whole or in part, are normatively referenced In this document and are indispensable for its application. For dated references, only tt, edition cited applies. For undated references. the latest edition of the referenced document (including any amendments) applies.
EN 1022, Domestic furniture — Seating — Determination of stability
EN 1335-2:2009. Office furniture — Office work chair — Pert 2: Safety requirements
EN 1335-3:2009. Office furniture — Office work chair — Part 3: Test methods
EN 1728:2012, Furniture — Seating — Test methods for the determinatIon of strength and durability
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
accessible part
part to which access can easily be gained by the user when the seating is In its Intended configuration of use and for which the probability of unintentional user contact is high
part accessible during setting up and folding
part to which access can only be gained when setting up and folding the furniture
shear and squeeze points
shear and squeeze points exist if the distance between two accessible parts moving relatively to each other is less than 25 mm and more than 8 mm for adults and children older than 3 years in any position during movement
castcxs assembly compnsing a housing, one or more wheels, an axle and, if required, accessories
leg rest
extension of the seat area intended to support the legs of the sitter
Note I to entry: A leg rest may or may not be permanently attached to the seat.
foot rail
component intended as an occasional support for the feet or to assist getting on and off a high chair or stool
Note 1 to entry: A foot rail may be a part of the structure of the underframe of a chair or stool.
visitor chair
seating for one person used in the office environment additional to the office work chair
Note 1 to entry: It is used for meetings or consultations as well as for reading, writing, listening and waiting.
median plane
vertical plane passing through the geometric centre of the seat, dividing the seat from side to side into two equal parts
Note 1 to entry: See Figure 1.
4.1 General
The seating shall be so designed as to minimise the risk of injury to the user.
All accessible parts (3.1) shall be so designed that physical injury and damage are avoided.
This requirement is met when:
a) accessible corners are rounded or chamfered:
b) the edges of the seat, back rest and arm rests which are in contact with the user wtien sitting In the chair are rounded or chamfered;
c) the edges of handles are rounded or chamfered in the direction of the force applied;
d) all other edges are free from burrs and rounded or chamfered;
e) the ends of hollow components are closed or capped.
Movable and adjustable parts shall be designed so that injuries and inadvertent operation are avoided. It shall not be possible foi’ any load bearing part of the seating to come loose unintentionally.
All parts which are lubricated to assist sliding shall be designed to protect users from lubricant stains when in
normal use.
4.2 Shear and squeeze points
4.2.1 Shear and squeeze points when setting up and folding
Unless 4.2.2 or 4.2.3 are applicable, shear and squeeze points that are created only during setting up and folding, including tipping seat actions, are acceptable, because the user can be assumed to be in control of his/her movements and to be able to cease applying the force immediately upon experiencing pain.
The edges of parts moving relative to each other and creating shear and squeeze points shall be as specified in 4.1.
4.2.2 Shear and squeeze points under influence of powered mechanism
With the exception of tipping seats there shall be no shear and squeeze points created by parts of the seating
operated by powered mechanisms, e.g. springs and gas lifts.
4.2.3 Shear and squeeze points during use.BS EN 16139-2013 pdf download.

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