prEN 16120 Chair mounted seat

prEN 16120:2011(E) P1/2 SHAPE \* MERGEFORMAT Draft For Public Enquiry Title: Child use and care articles - Chair mounted seat Public enquiry commences 17-JUN-2010 Public enquiry CLOSES: 18-OCT-2010 Readers are warned thar this draft is subject to ongoing development and change. Any comments or proposed changes submitted will be considered by the relevent technical panel. All approved CEN/CENELEC ENs will be published as lrish Standards. © NSAI 2011 No copying without NSAI permission except as permitted by copyright law SHAPE \* MERGEFORMAT Draft For Public Enquiry Title: Child use and care articles - Chair mounted seat Public enquiry commences 17-JUN-2010 Public enquiry CLOSES: 18-OCT-2010 Readers are warned thar this draft is subject to ongoing development and change. Any comments or proposed changes submitted will be considered by the relevent technical panel. All approved CEN/CENELEC ENs will be published as lrish Standards. © NSAI 2011 No copying without NSAI permission except as permitted by copyright law EUROPEAN STANDARD DRAFT NORME EUROPÉENNE prEN 16120 EUROPÄISCHE NORM June 2011 ICS 97.140;97.190 English Version Child use and care articles - Chair mounted seat This draft European Standard was established by CEN exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16120:2011: E worldwide for CEN national Members. Contents Page Foreword ............................................................................................................. 1 Scope ................................................................................................................. 2 Normative references ....................................................................................... 3 Terms and definitions ....................................................................................... 4 Test equipment ................................................................................................. 4.1 Test mass A ...................................................................................................... 4.2 Test mattress..................................................................................................... 4.3 Small parts cylinder.......................................................................................... 4.4 Feeler gauge...................................................................................................... 5 General................................................................................................................ 5.1 Product conditioning......................................................................................... 5.2 Test conditions................................................................................................... 5.3 Application of forces.......................................................................................... 5.4 Tolerances........................................................................................................... 5.5 Order of test........................................................................................................ 6 Chemical hazards - Migration of certain elements ........................................... 7 Thermal hazards .................................................................................................. 8 Mechanical hazards ............................................................................................. 8.1 Hazards due to height adjustment of the product .......................................... 8.1.1 General ............................................................................................................... 8.1.2 Unintentional release of locking mechanism(s) ............................................. 8.1.3 Test method for the durability of the locking mechanisms ........................... 8.2 Hazards due to moving parts .......................................................................... 8.2.1 Requirements for compression points ........................................................... 8.2.2 Requirements for shear points ........................................................................ 8.3 Entrapment hazards .......................................................................................... 8.3.1 Requirements .................................................................................................... 8.3.2 Test method ....................................................................................................... 8.4 Choking and ingestion hazards ..................................................................... 8.4.1 Requirements .................................................................................................... 8.4.2 Test method ....................................................................................................... 8.5 Suffocation hazards ........................................................................................ 8.6 Hazardous edges, corners and protruding parts ........................................... 8.7 Hazards from inadequate structural integrity ................................................. 8.7.1 Static strength ................................................................................................... 8.7.2 Dynamic strength .............................................................................................. 8.8 Chair attachment system .................................................................................. 8.8.1 Requirements .................................................................................................... 8.8.2 Test methods ..................................................................................................... 8.9 Restraint system ................................................................................................ 8.9.1 Requirements .................................................................................................... 8.9.2 Test methods .................................................................................................... 8.10 Hazards due to inadequate size .................................................................... 8.10.1 Requirement for products not supported on top of the backrest of the chair ... 8.10.2 Requirement for products supported on top of the backrest of the chair .......... 8.10.3 Test method for products not supported on top of the backrest of the chair ... 8.10.4 Test method for products supported on top of the backrest of the chair .......... 9 Product information........................................................................................... 9.1 General ................................................................................................................ 9.2 Marking of product ............................................................................................. 9.2.1 Requirements....................................................................................................... 9.2.2 Durability of marking .......................................................................................... 9.2.3 Test method for durability of marking ............................................................... 9.3 Purchase information .......................................................................................... 9.4 Instructions for use .............................................................................................. Annex A (informative) Rationales ................................................................................ A.1 Introduction ......................................................................................................... A.2 Chemical hazards (see clause 6) ....................................................................... A.3 Thermal hazards (see clause 7) ......................................................................... A.4 Mechanical hazards (see clause 8)..................................................................... A.4.1 Hazards from moving parts (see clause 8.2)..................................................... A.4.2 Entanglement hazards (see clause 8.3)............................................................. A.4.3 Choking and ingestion hazards (see clause 8.4).............................................. A.4.4 Suffocation hazards (see clause 8.5)................................................................. A.4.5 Hazardous edges and protrusions (see clause 8.6)......................................... A.4.6 Structural integrity (see clause 8.7)................................................................... Bibliography ................................................................................................................ Foreword This document (prEN 16120:2011) has been prepared by Technical Committee CEN/TC 252 “Child use and care articles”, the secretariat of which is held by AFNOR. This document is currently submitted to the second CEN Enquiry. 1 Scope This standard specifies safety requirements and test methods for chair mounted seats intended to be fixed on an adult chair to raise the sitting position of a child able to sit unaided up to an age of 3 years or maximum weight of 15 kg. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 71-2, Safety of toys — Part 2: Flammability. EN 71-3, Safety of toys — Part 3: Migration of certain elements. EN 1103, Textiles – Fabrics for apparel — Detailed procedure to determine the burning behaviour. EN ISO 2439, Flexible cellular polymeric materials - Determination of hardness (indentation technique) (ISO 2439:2008). 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 chair attachment system System designed to attach the chair mounted seat to the adult chair. 3.2 restraint system system to restrain the child within the chair mounted seat. 3.3 waist restraint Device to restrain the child in the waist area to prevent the child from climbing out. 3.4 crotch restraint device to fit between the child’s legs to prevent the child from sliding forward. 4. Test equipment 4.1 Test mass A A cylindrical bag a diameter of 140 mm filled with sand to a total mass of 10 kg. 4.2 Test mattress Mattress made of soft foam (for example polyurethane) sheet having a thickness of 2550 mm with a bulk density of (30±2) kg/m3 and an indentation hardness index of 170±20 according to EN ISO 2439. 4.3 Small parts cylinder Small parts cylinder for the assessment of small components, having dimensions in accordance with Figure 1. Dimensions in millimetres Figure 1 – Small parts cylinder 4.4 Feeler gauge Gauge with a thickness of (0,4±0,02)mm and an insertion edge radius of (±0,5)mm (Figure 2). Dimensions in millimetres Figure 2 — Feeler gauge 5 General 5.1 Product conditioning Before testing, any fabric used shall be cleaned or washed and dried twice in accordance with the manufacturer's instructions. 5.2 Test conditions The tests shall be carried out in ambient conditions of 15 ℃ to 25 ℃. The tests are designed to be applied to chair mounted seats that are fully assembled and ready for use in accordance with the manufacturer's instructions. If the chair mounted seat can be assembled or adjusted in different wars, the most onerous combinations shall be used for each test. 5.3 Application of forces The force in durability tests shall be applied sufficiently slowly to ensure that negligible dynamic force is applied. The force in durability tests shall be applied at a rate to ensure that excessive heating does not occur. 5.4 Tolerances Unless otherwise stated, the following tolerances apply: — Forces: ± 5% of the nominal force; — Masses: ± 0,5% of the nominal mass; — Dimensions: ± 1,0mm of the nominal dimension; — Angles: ± 2° of the nominal angle; — Positioning of loading pads: ± 5mm; — Duration of forces: (2±1) s for durability tests [(10±2) s for static load tests] 5.5 Order of test 6 Chemical hazards - Migration of certain elements The migration of synthetic or natural elements from coatings of paint, varnish, lacquer, polymer and similar coatings on exterior surfaces shall not exceed following amounts:  Antimony: 60 mg/kg; Arsenic: 25 mg/kg; Barium: 1 000 mg/kg; Cadmium: 75 mg/kg;  Chromium: 60 mg/kg; Lead: 90 mg/kg; Mercury: 60 mg/kg; Selenium: 500 mg/kg. These limits shall be verified in accordance with the test method given in EN 71-3. Where a surface is coated with a multi-layer of paint or similar coating, the test sample shall not include the base material. A separate sample may be used for these tests. 7 Thermal hazards When tested in accordance with EN 71-2, the maximum rate of spread of flame of textile materials or coated textile materials shall not exceed 30 mm/sec. When tested in accordance with EN 1103 there shall be no flash effect. These requirements apply to parts with an area greater than 310 cm2. A separate sample may be used for these tests. 8 Mechanical hazards 8.1 Hazards due to height adjustment of the product 8.1.1 General Inflatable systems shall be fitted with non-return valves. 8.1.2 Unintentional release of locking mechanism(s) Inflatable systems are excluded from the requirements of this clause. Product that in 8.1.3 Test method for the durability of the locking mechanisms Operate 300 times any locking mechanism(s). 8.2 Hazards due to moving parts 8.2.1 Requirements for compression points After the chair mounted seat is set up for normal use in accordance with the manufacturer's instructions there shall be no accessible compression points which can close to less than 12 mm unless they are always less than 3 mm, as the result of: a) the movement of the chair mounted seat; or b) the movement of body weight by the child using the chair mounted seat; or c) the application of an external force (either by another child or, unintentionally, by the carer, or by a powered mechanism). Movement due to play and/or elasticity of materials shall not be considered as compression hazard. Compression point between chair mounted seat and the chair on which they are mounted are excluded from this requirement. 8.2.2 Requirements for shear points 8.3 Entrapment hazards 8.3.1 Requirements 8.3.2 Test method 8.4 Choking and ingestion hazards 8.4.1 Requirements 8.4.2 Test method 8.4.2.2 Torque test 8.4.2.3 Tensile test 8.5 Suffocation hazards 8.6 Hazardous edges, corners and protruding parts 8.7 Hazards from inadequate structural integrity 8.7.1 Static strength 8.7.1.1 Requirement 8.7.1.2 Test method Maintain the masses for 24 h. Remove the masses and allow the chair mounted seat to recover for 1 h. 8.7.2 Dynamic strength 8.7.2.1 Requirement When tested in accordance with 8.7.2.2 the chair mounted seat shall not show any damage. 8.7.2.2 Test method Chair mounted seats that can be adjusted in height shall be adjusted to the most onerous position. Place the chair mounted seat on a horizontal flat rigid surface and secure the chair mounted seat against movement by any appropriate means. Place the test mattress (4.2) on the seat. Hold the test mass A (4.1) in a vertical position 60100 mm above the upper surface of the mattress at the centre of the seat and allow it to drop freely on to the seat. Carry out the test for a total of 100 drops with a frequency of 10 drops per minute. 8.8 Chair attachment system 8.8.1 Requirements 8.8.2 Test methods a) first in the stress direction under normal use; b) then in a direction 45° to the previous direction. Perform this test times. Measure the distance between the lines drawn flush with the jaws. 8.9 Restraint system 8.9.1 Requirements 8.9.2 Test methods a) first in the stress direction under normal use; b) then in a direction 45° to the previous direction. 8.10 Hazards due to inadequate size 8.10.1 Requirement for products not supported on top of the backrest of the chair 有关产品无法支撑椅子靠背顶部的要求 The minimum dimensions (width and depth) of the of the seat of the chairs for which the chair mounted seat is intended, as specified in the product information, shall be 40at least 20 mm greater than the base dimensions (width and depth) of the chair mounted seat measured in accordance with 8.10.3.1. 正如产品信息中所规定: 这款产品所设计的椅子的座位的最小尺寸(即宽度与深度)应该比8.10.3.1中所测量的加高座位的基座尺寸(宽度和深度)大40mm. The minimum width of the backrest of the chairs for which the product is intended, specified in the product information, shall be at least 10020 mm greater than the height of anchorage points of the chair attachment system measured in accordance with 8.10.3.2. 正如产品信息中所规定: 这款产品所要求的椅子的靠背的最小宽度应该比8.10.3.2中所测量的加高座位的靠背宽度大20mm. 8.10.2 Requirement for products supported on top of the backrest of the chair 有关产品支撑椅子靠背顶部的要求 The minimum dimensions (width and depth) of the of the seat of the chairs for which the chair mounted seat is intended, as specified in the product information, shall be at least 2040 mm greater than the base dimensions (width and depth) of the chair mounted seat measured in accordance with 8.10.4. 正如产品信息中所规定: 这款产品所设计的椅子的座位的最小尺寸(宽度与深度)应该比8.10.4中所测量的加高座位的基座尺寸(宽度和深度)大40mm The minimum width of the backrest of the chairs for which the product is intended, specified in the product information, shall be at least 20 mm greater than the width of the anchorage points of the chair attachment system to the chair backrest measured in accordance with 8.10.4. 正如产品信息中所规定: 这款产品所要求的椅子的靠背的最小宽度应该比8.10.4中所测量的椅子附加系统至椅子靠背的锚固点的宽度大20mm. The minimum and maximum heights of the backrest of the chairs for which the product is intended, specified in the product information, shall be those that allow the chair attachment system to be adjusted so that the seating area of chair mounted seat is not inclined forward (see Figure 3). 正如产品信息中所规定: 这款产品所要求的椅子的靠背的最小和最大高度应该是允许椅子附加系统能够被调节以使加高座位的就坐区域不向前倾斜的一种高度位置. Figure 3 — Determination of minimum and maximum height of the chair backrest 8.10.3 Test method for products not supported on top of the backrest of the chair 8.10.3.1 Test method for measurement of base dimensions Place the chair mounted seat on a horizontal surface. Determine the outermost contact points of the base of