SIST EN 1022:2019

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Pohištvo - Sedežno pohištvo - Ugotavljanje stabilnostiMöbel - Sitzmöbel - Bestimmung der StandsicherheitMobilier domestique - Sièges - Détermination de la stabilitéFurniture - Seating - Determination of stability97.140PohištvoFurnitureICS:Ta slovenski standard je istoveten z:EN 1022:2018SIST EN 1022:2019en,fr,de01-april-2019SIST EN 1022:2019SLOVENSKI
STANDARDSIST EN 1022:20061DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1022
November
t r s z ICS
{ yä s v r Supersedes EN
s r t tã t r r wEnglish Version
Furniture æ Seating æ Determination of stability Mobilier æ Sièges æ Détermination de la stabilité
Möbel æ Sitzmöbel æ Bestimmung der Standsicherheit This European Standard was approved by CEN on
s July
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
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t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s r t tã t r s z ESIST EN 1022:2019

Page European foreword . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 5 4 General test conditions . 7 4.1 General . 7 4.2 Application of forces . 8 4.3 Tolerances . 8 5 Test equipment . 8 5.1 General . 8 5.2 Loading point template . 8 5.3 Floor . 10 5.4 Stops . 10 5.5 Stability loading pad . 10 5.6 Stability loading device . 11 5.7 Loading discs. 13 5.8 Support apparatus . 13 5.9 Support for tests for reclining back rests . 13 5.10 Local loading pad . 13 5.11 Seat loading pad . 13 6 Determination of seat and back loading points . 14 6.1 Swivelling seats . 14 6.1.1 Seat loading point “A” . 14 6.1.2 Back loading point “B” . 15 6.2 All other seating . 15 6.2.1 General . 15 6.2.2 Seating with a back rest . 15 6.2.3 Seating without a back rest . 15 6.3 Loungers . 17 6.4 Determination of height of seat loading point . 17 7 Test methods for assessing stability of all seating except loungers . 17 7.1 General . 17 7.2 Requirements . 18 7.3 Test procedures, all seating . 18 7.3.1 Forwards overturning . 18 7.3.2 Forwards overturning for seating with foot rest . 21 7.3.3 Corner stability test . 21 7.3.4 Sideways overturning, all seating without arm rests . 23 7.3.5 Sideways overturning, all other seating . 24 7.3.6 Rearwards overturning all seating with back rests . 26 7.4 Additional test procedures for seating with reclining back rests . 27 7.4.1 General . 27 7.4.2 Tilting seating . 27 7.4.3 Reclining seating with leg rest . 28 7.4.4 Reclining seating without leg rest . 30 7.4.5 Rearwards stability test for rocking chairs . 31 SIST EN 1022:2019

Seat loading pad data . 35 Annex B (normative)
Test parameters . 38 B.1 All seating other than loungers . 38 B.2 Loungers . 39
IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.org/obp 3.1 arm rest part of the seating able to support the arms of the user when seated, 100 mm or higher above the height of the seat loading point 3.2 back rest element that supports the back of the user higher than 100 mm above the height of the seat loading point 3.3 foot rest part intended to support the feet of the user which assists the user getting on or off an item of seating Note 1 to entry: A foot rest can or cannot be permanently attached to the structure of the item of seating. 3.4 leg rest extension of the seat area intended to support the legs of the user Note 1 to entry: A leg rest can or cannot be permanently attached to the structure of the item of seating, and may not be suitable for use as an item of seating itself. 3.5 load bearing structure load bearing parts of the item of seating such as the frame, seat, back and arm supports and suspension 3.6 lounger item of seating intended for reclined posture with at least one back rest position such that back rest angle is 45 degrees or less to the horizontal, and a leg rest which is an integral part of the product and intended to support the full body weight of a user SIST EN 1022:2019

Key
back rest angle Figure 1 — Example of Lounger 3.7 median plane vertical plane running from front to rear through the centre of the seat, dividing the item of seating into two parts Note 1 to entry: In most instances the two parts are symmetrical. Note 2 to entry: See Figure 2. 3.8 overturning when an item of seating pivots to a position beyond which the item continues to fall 3.9 raised side edge side edge of the item of seating, higher than 50 mm above the height of the seat loading point 3.10 stability ability to withstand forces that tend to cause the loaded seating to overturn 3.11 supporting point foot of a leg, castor or glide 3.12 swivelling seat item of seating, whose upper part, which includes the seat and back, is supported on a single column and can rotate in the horizontal plane 3.13 transverse plane vertical plane perpendicular to the median plane passing through the seat loading point Note 1 to entry: See Figure 2. SIST EN 1022:2019

Key 1 transverse plane 2 median plane A seat loading point Figure 2 — Transverse and median plane 3.14 work chair swivelling chair, with or without arm rests, for use by one adult in the office, whose upper part, which includes the seat and back is supported on a single column and can rotate in the horizontal plane and is at least adjustable in height 4 General test conditions 4.1 General The furniture shall be tested as delivered. Knock-down furniture shall be assembled according to the instructions supplied with it. Knock-down fittings shall be tightened before testing. If the furniture can be assembled or combined in different ways, the most adverse configuration shall be used for each test. Unless otherwise specified by the manufacturer, the sample for test shall be stored in indoor ambient conditions for at least 24 h immediately prior to testing. The tests shall be carried out at indoor ambient conditions but if during a test the temperature is outside the range 15 °C to 25 °C the maximum and/or minimum temperature shall be recorded in the test report. SIST EN 1022:2019

Scale: 1 square = 20 mm Key 1 top 6 seat portion 2 rear 7 front 3 back portion 8 bottom 4 seat load A seat loading point (all seating except stools) 5 back load B back loading point (all seating except stools) Figure 3 — Loading surface curves for seat and back loading point template SIST EN 1022:2019

Key 1 typical section 2 mark to fix 90° 3 straight edge for the determination of seat or back inclination A seat loading point (all seating except stools) B back loading point (all seating except stools) C seat loading point (stools) Figure 4 — Loading point template So that the template can be positioned easily with the two members at 90° to each other, a line is drawn on the back portion. 5.3 Floor Horizontal, flat and rigid with a smooth surface. 5.4 Stops Unless otherwise stated, stops shall be of the minimum height required to prevent sliding and shall not inhibit overturning. 5.5 Stability loading pad A loading pad as shown in Figure 5. The circular pad may be made of any suitable material (e.g. plastic or wood). The extension piece shall be made of aluminium. Where it is not possible to use the pad with extension piece, a stability loading pad without the extension piece may be used. SIST EN 1022:2019

Key a grip material on a 300 mm R surface, recessed into a groove so that only the gripper teeth protrude. The carpet gripper placement shown is one example, other configurations are acceptable Figure 5 — Stability loading pad 5.6 Stability loading device A loading device in principle functioning as shown in Figure 6. SIST EN 1022:2019

Key a hold down strap b centre line of seat c for details see Figure 5 d for details see Figure 7 Figure 6 — Stability loading device – principle Dimensions in millimetres
Key 1 sufficient to clear all foam and fabric and allow for set back 2 height of loading point F2 horizontal outwards 3 centre line/centre of gravity of weight 4 rod with spherical tip 5 load X enlarged detail of rod with spherical tip Figure 7 — Example of front and side stability loading fixture SIST EN 1022:2019

Key 1 height adjustable support bars 2 pivot point Figure 8 — Support apparatus 5.9 Support for tests for reclining back rests Polypropylene sheet 1,5 mm ± 0,15 mm thick, 360 mm ± 10 mm wide and 700 mm ± 15 mm high. 5.10 Local loading pad Rigid cylindrical object 100 mm in diameter, with a flat face and a 12 mm edge radius. 5.11 Seat loading pad Naturalistically shaped rigid indenter with a hard, smooth surface having overall dimensions within the limits shown in Figure 9. For details of design see Annex A. SIST EN 1022:2019

Key 1 seat loading point Figure 9 — Seat loading pad – Overall dimensions 6 Determination of seat and back loading points 6.1 Swivelling seats 6.1.1 Seat loading point “A” The point in which the swivelling seat's axis of rotation intersects with the seat surface with the seat in a position as close as possible to the horizontal. SIST EN 1022:2019
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