Bsi bs en 16122 2012 (2015)

BS EN 16122:2012 Incorporating corrigendum February 2015 BSI Standards Publication Domestic and non-domestic storage furniture — Test methods for the determination of strength, durability and stability BRITISH STANDARD BS EN 16122:2012 National foreword This British Standard is the UK implementation of EN 16122:2012, incorporating corrigendum February 2015 The UK participation in its preparation was entrusted by Technical Committee FW/0, Furniture, to Subcommittee FW/0/2, Domestic and Contract Furniture A list of organizations represented on this subcommittee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2015 Published by BSI Standards Limited 2015 ISBN 978 580 89776 ICS 97.140 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2012 Amendments/corrigenda issued since publication Date Text affected 30 April 2015 Implementation of CEN corrigendum February 2015: Modification to A.3.2, Weight and string system BS EN 16122:2012 EN 16122 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM July 2012 Incorporating corrigendum February 2015 ICS 97.140 English Version Domestic and non-domestic storage furniture - Test methods for the determination of strength, durability and stability Meubles de rangement usage domestique et collectif Méthode d'essai pour la détermination de la résistance, la durabilité et la stabilité Behältnismöbel für den Wohn- und Nicht-Wohnbereich Prüfverfahren zur Bestimmung der Festigkeit, Dauerhaltbarkeit und Standsicherheit This European Standard was approved by CEN on June 2012 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member This European Standard 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 16122:2012: E BS EN 16122:2012 EN 16122:2012 (E) Contents Page Foreword 4 Scope 5 Normative references 5 Terms and definitions 5 4.1 4.2 4.3 4.4 4.5 General test conditions 7 Preliminary preparation 7 Application of forces .8 Tolerances 8 Prevention of movement during test 8 Loading 8 Test equipment and apparatus 8 6.1 6.1.1 6.1.2 6.1.3 6.1.4 6.1.5 6.2 6.2.1 6.2.2 6.3 6.3.1 6.3.2 6.4 6.4.1 6.4.2 6.4.3 Test procedures for non-movable parts 10 Shelves 10 General 10 Shelf retention test – horizontal outward force 10 Shelf retention test – vertical downward force 10 Deflection of shelves 10 Strength of shelf supports 11 Tops and bottoms 12 Sustained load test for tops and bottoms 12 Static load test for tops and bottoms 12 Clothes rails and supports 12 General 12 Dislodgement of clothes rails 13 Strength of the structure 14 Test for structure and underframe 14 Drop test 16 Tests for units with castors or wheels 17 7.1 7.1.1 7.1.2 7.1.3 7.1.4 7.1.5 7.2 7.2.1 7.2.2 7.2.3 7.3 7.3.1 7.3.2 7.3.3 7.4 7.4.1 7.4.2 7.5 7.5.1 Test procedures for movable parts 17 Pivoted doors 17 General 17 Strength of pivoted doors  Vertical load of pivoted doors 17 Horizontal load of pivoted doors 18 Slam shut of pivoted doors 19 Durability of pivoted doors 20 Sliding doors and horizontal roll fronts 21 General 21 Slam shut/open of sliding doors and horizontal roll fronts 21 Durability of sliding doors and horizontal roll fronts 22 Flaps 22 Strength of bottom-hinged flaps 22 Durability of flaps 23 Drop test for horizontally top-hinged doors/flaps 23 Vertical roll fronts 24 Slam shut/open of vertical roll fronts 24 Durability of vertical roll fronts 25 Extension elements 25 General 25 BS EN 16122:2012 EN 16122:2012 (E) 7.5.2 7.5.3 7.5.4 7.5.5 7.5.6 7.6 7.6.1 7.6.2 7.6.3 7.6.4 Strength of extension elements 25 Durability of extension elements 26 Slam shut and open of extension elements 28 Displacement of extension element bottoms 29 Interlock test 29 Locking and latching mechanism tests 29 General 29 Strength test for locking and latching mechanisms for extension elements 29 Locking and latching mechanisms for doors, flaps and roll fronts 30 Locking and latching mechanism durability test 30 8.1 8.2 8.3 Trays 30 General 30 Sustained load test for trays 30 Drop test for trays 30 Coat hooks  Strength of coat hooks 31 10 10.1 10.1.1 10.1.2 10.1.3 10.1.4 10.2 Units mounted to the building or other structure 32 Units not supported by the floor 32 General 32 Movable parts, shelf supports, tops and bottoms 32 Overload 32 Dislodgement test 33 Units supported by the floor 33 11 11.1 11.2 11.2.1 11.2.2 11.3 11.4 11.4.1 11.4.2 11.4.3 11.5 11.6 Stability tests 33 General 33 Doors, extension elements and flaps closed, all storage units unloaded 33 Units that are, or can be, adjusted to a height of 1000 mm or less 33 Units that are, or can be, adjusted to a height of more than 1000 mm 34 Opening doors, extension elements and flaps, all storage units unloaded 34 Doors, extension elements and flaps opened and unlocked 34 All storage areas unloaded and all doors, extension elements and flaps open 34 All storage areas unloaded with overturning load 34 All storage areas loaded with overturning load 34 Doors, extension elements and flaps closed and locked, all storage units loaded 35 Dynamic stability test for units with castors 35 12 Test report 35 Annex A (normative) Apparatus for slam-shut/open test of extension elements 37 A.1 Principle 37 A.2 Apparatus 37 A.3 Calibration 39 A.3.1 Pneumatic apparatus 39 A.3.2 Weight and string system 39 BS EN 16122:2012 EN 16122:2012 (E) Foreword This document (EN 16122:2012) has been prepared by Technical Committee CEN/TC 207 “Furniture”, the secretariat of which is held by UNI This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2013, and conflicting national standards shall be withdrawn at the latest by January 2013 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 16122:2012 EN 16122:2012 (E) Scope This European Standard specifies tests methods for the determination of strength, durability and stability for all types of domestic and non-domestic storage furniture including domestic kitchen furniture It does not apply to office, industrial, catering equipment and retail storage, nor to industrial storage lockers Strength and durability tests not assess the structure of the building (for example the strength of wall hanging cabinets); rather, they include only the cabinets and the parts used for attachment The wall and the wall attachments are not included Requirements for safety, strength and durability can be found in other European Standards Assessment of the effects of ageing, degradation and flammability is not included Annex A (normative) contains details of test equipment for the slam open/shut testing of extension elements 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 the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies ISO 7619-2:2010, Rubber, vulcanized or thermoplastic — Determination of indentation hardness — Part 2: IRHD pocket meter method Terms and definitions For the purposes of this document, the following terms and definitions apply 3.1 catch device device which keeps or pulls a component in place but does not require a second action in order to release it EXAMPLE A magnetic catch or a self-closing-mechanism 3.2 clear height unobstructed height above the top of the bottom surface, or the structure of the unit Note to entry: For example, the top of the extension element below and the lower edge of the extension element above See Figure BS EN 16122:2012 EN 16122:2012 (E) Key structure of the unit clear height H Figure — Clear height 3.3 damper mechanism mechanism which gently brings the component to a stop 3.4 extension element components that can be pulled out and pushed in EXAMPLE Drawers, suspended pocket files, keyboard trays 3.5 flap horizontally hinged door, which opens upwards or downwards 3.6 free standing unit unit not intended to be attached to a load bearing structure 3.7 interlock device which restrains the opening of more than one extension element at a time 3.8 latching mechanism mechanism which retains an extension element or a door in the closed position and which requires a second action to release it and may require a key or a combination in order to activate it 3.9 locking mechanism mechanism that limits access to the interior of a unit or a storage element and that requires a key or a combination in order to activate it or to make it possible to activate it 3.10 stay hardware component usually used to hold a flap or door in the open position BS EN 16122:2012 EN 16122:2012 (E) 3.11 top hanging unit unit intended to be entirely supported by the ceiling 3.12 wall-, panel- and screen-hanging unit unit intended to be supported by a wall, panel or screen 3.13 tray storage element that is designed, under normal use, to be removed from the storage unit and used independently 3.14 levelling device adjustable device intended to keep the item of furniture perpendicular to the floor EXAMPLE 4.1 Adjustable feet or similar General test conditions Preliminary preparation The unit(s)/component(s) shall be tested as delivered The unit(s)/component(s) shall be assembled and/or configured according to the instructions supplied Unless otherwise stated, the most adverse configuration shall be used for each test If mounting or assembly instructions are not supplied, the mounting or assembly method shall be recorded in the test report Fittings shall be tightened before testing and shall not be retightened unless specifically required in the manufacturer’s instructions If the configuration needs to be changed in order to produce the worst-case conditions, this shall be recorded in the test report Levelling devices shall be set as near as possible to mm from the fully open position whilst ensuring the unit is perpendicular to the floor A combination of tests may be necessary to cover the properties of multifunction components; e.g a receding door shall be tested both as a sliding door and as a pivoted door Unless otherwise specified by the manufacturer, the sample for test shall be stored in indoor ambient conditions for at least 24 hours immediately prior to testing Except for the deflection of shelves (see below), the tests shall be carried out in indoor ambient conditions at a temperature between 15 °C and 25 °C If during a test the temperature is outside of the range of 15 °C to 25 °C, the maximum and/or minimum temperature shall be recorded in the test report The test for deflection of shelves (6.1.4), except metal, stone and glass shelves, shall be carried out at a relative humidity of 45 % to 55 % If during a test the relative humidity is outside this range, the maximum and/or minimum shall be recorded in the test report If a test cannot be carried out as specified in this Standard, e.g because a loading pad cannot be used for the application of a force due to the design of a product, the test shall be carried out as closely as possible to that specified Before beginning the testing, visually inspect the unit thoroughly Record any defects so that they are not assumed to have been caused by the tests Carry out measurements, if specified During testing, the unit shall be placed on the floor and levelled, unless otherwise specified All tests specified for a particular component shall be carried out on the same sample BS EN 16122:2012 EN 16122:2012 (E) 4.2 Application of forces The test forces in the static load tests shall be applied sufficiently slowly to ensure that negligible dynamic force is applied Unless otherwise specified, each specified force shall be maintained for not less than 10 s and not more than 15 s The test forces in durability tests shall be applied at a rate to ensure that excessive heating does not occur Unless otherwise specified, each test force shall be maintained for (2 ± 1) s The forces may be replaced by masses The relationship 10 N = kg shall be used 4.3 Tolerances Unless otherwise stated, the following tolerances are applicable to the test equipment:  Forces: ± % of the nominal force;  Velocities: ± % of the nominal velocity;  Masses: ± % of the nominal mass;  Dimensions: ± mm of the nominal dimension;  Angles: ± 2° of the nominal angle The accuracy for the positioning of loading pads and impact plates shall be ± mm NOTE For the purposes of uncertainty measurement, test results are not considered to be adversely affected when the above tolerances are met 4.4 Prevention of movement during test If a freestanding unit tends to overbalance during the tests specified in Clauses and 7, load the unit until this tendency stops, unless otherwise specified If a freestanding unit tends to slide during the tests specified in Clauses and 7, with the exception of subclauses 6.4.2 and 6.4.3, the unit shall be restrained by stops (5.3) 4.5 Loading Unless otherwise specified, all storage components, which are not subject to testing, shall be uniformly loaded with the specified load(s) Test equipment and apparatus Unless otherwise specified, the tests may be applied by any suitable device, because results are dependent only upon correctly applied forces and not on the apparatus The equipment shall not inhibit deformation of the unit/component, i.e it shall be able to move so that it can follow the deformation of the unit/component during testing, so that the loads are always applied at the specified points and in the specified directions 5.1 Floor surface, which is a rigid, horizontal and flat surface For the strength of structure and underframe (6.4.1), the surface shall be smooth high-pressure plastics laminate BS EN 16122:2012 EN 16122:2012 (E) If the extension element has a damper and/or catch device, including a self-opening or self-closing mechanism, this shall be allowed to operate at each cycle Open and close the extension element at an average speed of approximately 0,25 m/s via the handle or, in case of two handles, in the middle between the handles On extension elements without a handle, apply the force at the same level as the runners The recommended rate is maximum six cycles per minute with the pause in the closed position Dimensions in millimetres Key l depth of drawer Figure 19 — Durability test of drawers and runners 7.5.4 Slam shut and open of extension elements The slam open part of the test is applicable only to extension elements fitted with stops in the open position Place the extension element on its runners and load it as specified with marbles (5.7) or, when configured for pocket files, load it with paper (5.8) as shown in Figure 18 Extension elements with stops in the open position shall be opened to 300 mm, or fully opened if they cannot be opened to 300 mm Extension elements without stops in the open position shall be opened to a maximum of 300 mm but ensuring that at least 100 mm remains inside the unit Slam the extension element shut ten times using the velocities specified NOTE Two suitable slam test apparatus are shown in Annex A The slamming force shall act until 10 mm before the extension element reaches its end travel Apply the force to the handle or, in case of two handles, in the middle between the handles On extension elements without a handle, apply the force at the same level as the runners 28 BS EN 16122:2012 EN 16122:2012 (E) Carry out the slam open test according to the same principle as above, if the extension element is fitted with stops in the open position Slam the extension element open ten times using velocities specified 7.5.5 Displacement of extension element bottoms Place the extension element on its runners, or suspend it in a similar way, and load it with the specified load Apply a static force as specified through a loading pad (5.4), approximately 25 mm above the bottom of the extension element, acting at the middle of the front and back of the extension element (see Figure 20) Apply the force ten times Figure 20 — Displacement of drawer bottoms 7.5.6 Interlock test When interlocks are fitted, one extension element shall be fully extended and an outwards force as specified shall be applied to the handles of each of the remaining extension elements one at a time The test shall be carried out a total of ten times on each element Record if the extension elements remain closed 7.6 7.6.1 Locking and latching mechanism tests General Prevent the unit from moving during the test without interfering with the operation of the locking/latching mechanism and the furniture component being tested Close all doors, flaps and extension elements and lock all locking/latching mechanisms 7.6.2 Strength test for locking and latching mechanisms for extension elements Apply a force in the direction of travel of the extension element at a direction 90° to the front of the element and at 30° to that direction, up, down, left and right If the test unit is to be used with one specific handle or multiple handles, which are less than or equal to 1/3 of the width of the front of the extension element, the forces shall be applied at the centre of the handle(s) If no 29 BS EN 16122:2012 EN 16122:2012 (E) handle is fitted, apply the force to the centre of the front of the extension element In addition, apply the forces 50 mm in from each of the left and right edges of the extension element If the handle is more than 1/3 of the width of the front of the extension element, apply the force to the centre of the handle and 50 mm from each end of the handle Repeat the test for each extension element 7.6.3 Locking and latching mechanisms for doors, flaps and roll fronts Apply a force in the direction of travel of the door/flap/roll front and at 30° to that direction, up and down The force shall be applied to the centre of the handle If no handle is fitted and the position of the handle is not included in the manufacturer's instructions, the force shall be applied at the most adverse position If the locking/latching mechanism requires rotation of the handle to operate it, the specified torque shall be applied to the handle in the direction of opening Repeat the test for each door 7.6.4 Locking and latching mechanism durability test Open and close the locking/latching mechanism for the specified number of cycles using any suitable test equipment at a rate of not more than twenty cycles per minute 8.1 Trays General Trays supported on runners shall be tested in accordance with strength and durability tests for extensions plus sustained load test and drop test All other trays shall be tested in accordance with sustained load and drop test 8.2 Sustained load test for trays Load the tray with the specified mass Place the tray in the storage unit and maintain the load for seven days 8.3 Drop test for trays This test is only applicable to trays not fitted with castors Hold the unloaded tray from one corner and drop the tray downwards onto the drop test floor (5.1), from the specified height for the half the specified number of cycles (see Figure 21) The specified height shall be measured from the drop test floor to the lowest corner of the tray Repeat the test by dropping from the diagonally opposite corner for the half the specified number of cycles 30 BS EN 16122:2012 EN 16122:2012 (E) Dimensions in millimetres Key tray drop test floor drop height Figure 21 — Tray drop test Coat hooks  Strength of coat hooks Apply the specified vertical downwards force to that part of the hook that extends furthest outward in the horizontal plane, or to any position likely to cause failure If the hooks are structurally interconnected, apply the force to each hook simultaneously 31 BS EN 16122:2012 EN 16122:2012 (E) 10 Units mounted to the building or other structure 10.1 Units not supported by the floor 10.1.1 General The tests specified in Clause 10 are intended to assess the strength of the devices used for the mounting to the building or structure, including the attachment to the unit The tests may be carried out on separate units The unit(s) shall be mounted according to the manufacturer's installation instructions Where the manner of mounting is ambiguously defined, the manner of mounting shall be recorded Adjustable wall attachment devices, e.g cabinet suspension brackets, shall be adjusted to the maximum depth (as far from the wall as possible) and to the mid of the height adjustment range Distance devices used for levelling the unit shall be placed as low and as far apart as possible 10.1.2 Movable parts, shelf supports, tops and bottoms Load all storages areas with the specified load(s) and carry out the following tests on those components most likely to cause failure to the wall attachment:  6.1.5: Strength of shelf supports;  6.2.2: Static load on tops and bottoms;  7.1.2: Vertical load on pivoted doors;  7.2.2: Slam shut/open of sliding doors and horizontal roll fronts;  7.3.1: Strength of bottom hinged flaps;  7.4.1: Slam shut/open of vertical roll fronts;  7.5.2: Strength of extension elements 10.1.3 Overload With the exception of shelves and worktops, load all of the storage elements with the specified load For shelves and worktops, load according to the following principle If the number of shelves is not determined by the structure of the unit(s) or specified in a requirement document, divide the internal height of the unit(s) in millimetres by two hundred and take the lower integer This number shall then be the number of shelves to be used during testing  Load on bottom: Specified load;  Load on first shelf: Specified load x 0,6;  Load on second shelf: Specified load x 0,4;  Load on third and following shelves: Specified load x 0,25;  Load on top surfaces: Specified load x 0,2 32 BS EN 16122:2012 EN 16122:2012 (E) If the volume of the unit, calculated by the inner width, depth and height, is greater than 0,225 m , the total load shall be multiplied by the factor, R: R= 1, ( , 75+ 2V ) where V is the volume of the unit in m When reduction of the load is necessary, it shall be removed from the bottom(s) The unit shall be loaded for one week Check whether the unit remains attached to the structure and carries the test load 10.1.4 Dislodgement test Close all doors, flaps and extension elements Apply to the unloaded storage unit the specified vertical upwards force at the least favourable point of the front edge The force shall be removed if the vertical distance of travel of the force is more than 10 mm NOTE This test is to assess the attachment of the complete storage unit and not the attachment of individual elements within the unit 10.2 Units supported by the floor This test applies to units standing or resting on the floor and mounted to the building, e.g a wall The unit shall be mounted according to the manufacturer’s instructions If the manner of mounting is ambiguously defined, the manner of mounting shall be recorded in the test report Apply the specified horizontal outwards static force to the centre of the top edge of the unit 11 Stability tests 11.1 General The stability tests shall be carried out with the unit placed on the test floor (5.1) Units designed to be placed against the wall shall not be tested in the rearwards direction Castors and height adjustment devices shall be in the position most likely to cause the unit to overturn 11.2 Doors, extension elements and flaps closed, all storage units unloaded 11.2.1 Units that are, or can be, adjusted to a height of 1000 mm or less Apply the specified vertical force by means of the loading pad (5.4) on the top surface acting 50 mm from the outer edge of the unit at any point likely to cause overturning Record if the unit overturns or is supported by an open extension element, opened door or opened flap 33 BS EN 16122:2012 EN 16122:2012 (E) 11.2.2 Units that are, or can be, adjusted to a height of more than 1000 mm Apply the specified vertical force together with the specified outward horizontal force on the top surface acting 50 mm from the outer edge of the unit at any point likely to cause overturning Record if the unit overturns or is supported by an open extension element, opened door or opened flap 11.3 Opening doors, extension elements and flaps, all storage units unloaded When two or more doors are fitted, the test shall be carried out on one closed door with the other door opened to 90° If doors and flaps provide access to other extension elements or flaps, these shall be opened when carrying out the test Locking mechanisms shall be unlocked Apply a horizontal force, which is just sufficient to open doors, extension elements or flaps The opening force shall be applied to the centre of the handle, knob, key etc Record if the unit overturns or is supported by an open extension element, opened door or opened flap 11.4 Doors, extension elements and flaps opened and unlocked 11.4.1 All storage areas unloaded and all doors, extension elements and flaps open All doors shall be opened to 90° and all extension elements shall be fully opened, except where there are no open stops, in which case they shall be opened to two thirds of the internal length All flaps shall be fully opened Interlock mechanisms shall not be overridden Record if the unit overturns or is supported by an open extension element, opened door or opened flap 11.4.2 All storage areas unloaded with overturning load Doors shall be opened to 90° and extension elements shall be fully opened, except where there are no open stops, in which case they shall be opened to two thirds of the internal length Flaps shall be fully opened Extension elements and flaps shall be opened across the full width of the unit Only one extension element in each vertical line of extension elements shall be opened so as to produce the configuration most likely to cause overturning Apply the specified vertical force to any point likely to cause overturning, on the centreline of the front of an extension element or 50 mm from the outer edge of a door or flap Record if the unit overturns or is supported by an open extension element, opened door or opened flap 11.4.3 All storage areas loaded with overturning load All storage areas shall be loaded as with the specified loads Doors shall be opened to 90° and extension elements shall be fully opened, except where there are no open stops, in which case they shall be opened to two thirds of the internal length Flaps shall be fully opened 34 BS EN 16122:2012 EN 16122:2012 (E) Extension elements and flaps shall be opened across the full width of the unit Only one extension element in each vertical line of extension elements shall be opened so as to produce the configuration most likely to cause overturning Unless conspicuously and durably marked by the manufacturer with a maximum load, the total mass of the unit shall be the weight of the unloaded item plus the load in the unit when loaded with the specified loads Apply a vertical force to any point most likely to cause overturning, on the centreline of the front of an extension element or 50 mm from the outer edge of a door or flap Record if the unit overturns or is supported by an open extension element, opened door or opened flap 11.5 Doors, extension elements and flaps closed and locked, all storage units loaded All storage areas shall be loaded with the specified loads When two or more doors can be locked, the test shall be carried out on one closed door with the other door opened to 90° If doors and flaps provide access to other extension elements or flaps, these shall be opened when carrying out the test Apply the specified horizontal outwards force in turn to all locked doors, extension elements and flaps The force shall be applied to the centre of the handhold, handle, knob etc in the direction of opening Record if the unit overturns or is supported by an open extension element, opened door or opened flap 11.6 Dynamic stability test for units with castors All storage areas shall be loaded with the specified loads utilising glass marbles in a suitable bag (5.7) All doors, extension elements and flaps shall be closed Any locking castor shall be unlocked Place the storage unit on the test floor (5.1) with a stop (5.3) If the unit has a handle for moving the unit then the unit shall be placed such that the handle is parallel to the stop and is the furthest edge from the stop If the unit has no handles and has doors or extension elements, the unit shall wherever possible be positioned such that the front of the doors, or extension elements, are perpendicular to the stop The storage unit shall travel at a speed of 0,5 m/s towards a stop The means of moving the unit shall be removed 50 mm before the stop and the unit shall be allowed to strike a stop Record if the unit overturns 12 Test report The test report shall include at least the following information: a) a reference to this European Standard; b) the item tested (relevant data); c) details of defects observed before testing; d) any variation from the specified temperature range; e) the test results; 35 BS EN 16122:2012 EN 16122:2012 (E) f) the name and address of the test facility; g) the date of test 36 BS EN 16122:2012 EN 16122:2012 (E) Annex A (normative) Apparatus for slam-shut/open test of extension elements A.1 Principle Lightweight (empty) extension elements are slammed at higher speeds than heavy (full) extension elements, but friction does not significantly affect the slamming speed Two extension elements with minimal friction, “empty” (5 kg) and “full” (35 kg), are used to simulate these conditions Using these extension elements, the speed of the extension element-slamming apparatus is adjusted to the slamming speeds specified A.2 Apparatus The following two apparatus are suggested for the slam tests of extension elements A.2.1 Pneumatic apparatus This consists of a pneumatically actuated low-friction piston/cylinder with a means of regulating the pressure of air-supplied form a reservoir The airflow between the piston/cylinder and the reservoir is controlled by an air-operated valve, which allows the air stored in the reservoir to flow to the piston/cylinder rapidly, when the control valve is operated This rate of flow is controlled by the incorporation of connecting tubing of specified internal diameters and lengths (see Figure A.1) 37 BS EN 16122:2012 EN 16122:2012 (E) Key cylinder Ф 40 mm, stroke ≤ 300 mm free outlet valve to be mounted directly on cylinder valve ¼ inch Nominal air flow > 900 l/min tube length 720 mm, internal diameter mm pressure regulator Nominal air flow > 900 l/min air reservoir (Ф = 75 mm, L = 350 mm, V = 545,6 cm ) tube length 040 mm, internal diameter mm air cleaner 10 primary pressure bar Figure A.1 — Circuit diagram for pneumatic drawer-slamming apparatus A.2.2 Weight and string system This consists of a mass, a string and pulley with a low friction bearing (see Figure A.2) 38 BS EN 16122:2012 EN 16122:2012 (E) Dimensions in millimetres Figure A.2 — Slam open test of extension element A.3 Calibration A.3.1 Pneumatic apparatus Using two extension elements, having masses of kg and 35 kg respectively, and exhibiting a total frictional force in the runners of not greater than 10 N, calibrate the apparatus to produce the required closing and opening velocity This may conveniently be achieved by setting the pressure to produce the calibration velocity for the 35 kg extension element and then adjusting the length of the tube from the pressure regulator (see Figure A.1) to produce the calibration velocity for the kg extension element A.3.2 Weight and string system The mass (m) is calculated by the following formula: m = K ⋅3 M where M is the total mass of the drawer Using the values for K in the requirements, the slam velocities after a travel distance of 300 mm will be equal to the slam velocities exerted by the pneumatic apparatus For other travel distances or other calibration conditions than those specified in the requirements document, the factor K shall be determined by experiment in order to be comparable with the pneumatic apparatus 39 This page deliberately left blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British Standards and other standardization products are published by BSI Standards Limited About us Revisions We bring together business, industry, government, consumers, innovators and others to shape their combined experience and expertise into standards -based solutions Our British Standards and other publications are updated by amendment or revision The 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