Inflatable play equipment - Safety requirements and test methods

This European Standard is applicable to inflatable play equipment intended for use by children fourteen years and under both individually and collectively.
This standard specifies safety requirements for inflatable play equipment for which the primary activities are bouncing and sliding. It sets measures to address risks and also to minimise accidents to users for those involved in the design, manufacture and supply of inflatable play equipment. It specifies information to be supplied with the equipment. The requirements have been laid down bearing in mind the risk factor based on available data.
This standard specifies the requirements that will protect a child from hazards that he or she may be unable to foresee when using the equipment as intended, or in a manner that can be reasonably anticipated.
This standard is not applicable to inflatable water-borne play and leisure equipment, domestic inflatable toys, air-supported buildings, inflatables used solely for protection, inflatables used for rescue, or other types of inflatable toys where the primary activity is not bouncing or sliding.

Aufblasbare Spielgeräte - Sicherheitstechnische Anforderungen und Prüfverfahren

Diese europäische Norm gilt für aufblasbare Spielgeräte für den bestimmungsgemäßen Gebrauch durch Kinder im Alter von vierzehn Jahren und darunter, entweder einzeln oder zu mehreren.
Diese Norm legt sicherheitstechnische Anforderungen für aufblasbare Spielgeräte, auf oder in denen die Hauptbetätigungen Springen und Rutschen sind, fest. Sie legt die Maßnahmen für die Handhabung der Gefahren und auch Verringerung von Unfällen der Benutzer fest, die von den mit der Konstruktion, Herstellung und Lieferung von aufblasbaren Spielgeräten befassten Stellen zu beachten sind. Diese Norm legt die mit den Spielgeräten mitzuliefernden Informationen fest. Die Anforderungen wurden unter Berücksichtigung des Risikofaktors, ausgehend von den verfügbaren Daten, festgelegt.
Diese Norm legt die Anforderungen fest, durch die ein Kind vor den Gefahren geschützt wird, die es möglicherweise nicht vorhersehen kann, wenn es das Gerät bestimmungsgemäß oder wie vernünftigerweise vorhersehbar benutzt.
Diese Norm gilt nicht für aufblasbare Spiel- und Freizeitgeräte zur Verwendung auf dem Wasser, aufblasbares Spielzeug für den privaten Gebrauch, Tragluftbauten und die nur zum Schutz und zur Rettung eingesetzten aufblasbaren Geräte oder anderes aufblasbares Spielzeug, auf dem die Hauptbetätigungen nicht Springen und Rutschen sind.

Équipements de jeu gonflables - Exigences de sécurité et méthodes d'essai

La présente Norme européenne s’applique aux équipements de jeu gonflables destinés à être utilisés par des enfants âgés de 14 ans ou moins, à titre individuel ou collectif.
La présente norme spécifie des exigences de sécurité relatives aux équipements de jeu gonflables permettant principalement aux enfants de rebondir et de glisser. Elle présente des mesures permettant de faire face aux risques et de réduire au minimum le nombre d’accidents d’utilisateurs, à l’intention des personnes impliquées dans la conception, la fabrication et la fourniture d’équipements de jeu gonflables. Elle spécifie les informations à fournir avec l’équipement. Les exigences ont été établies en tenant compte du facteur risque basé sur les données disponibles.
La présente norme spécifie les exigences qui permettront de protéger les enfants contre les risques qu’ils peuvent être incapables de prévoir lors de l’utilisation adaptée de l’équipement ou d’une manière qu’il est possible d’anticiper raisonnablement.
La présente norme ne s’applique pas aux structures gonflables ni aux équipements ludiques gonflables flottants, aux jouets gonflables domestiques, aux constructions pneumatiques, aux structures gonflables utilisées uniquement pour la protection, aux équipements gonflables utilisés pour le sauvetage, ni à d’autres types de jouets gonflables n’étant pas principalement destinés à permettre de rebondir ou de glisser.
La présente norme ne s’applique pas aux structures gonflables ni aux équipements ludiques gonflables
flottants, aux jouets gonflables domestiques, aux constructions pneumatiques, aux structures gonflables
utilisées uniquement pour la protection, aux équipements gonflables utilisés pour le sauvetage, ni à d’autres
types de jouets gonflables n’étant pas principalement destinés à permettre de rebondir ou de glisser.

Napihljiva igralna oprema - Varnostne zahteve in preskusne metode

Ta evropski standard se uporablja za napihljivo igralno opremo, namenjeno uporabi otrok, mlajših od 14 let, in sicer posamezno in v skupini. Ta standard določa varnostne zahteve za napihljivo igralno opremo, ki je namenjena zlasti skakanju in drsenju. Določa ukrepe za obravnavanje tveganj in čim večjo omejitev nesreč za uporabnike, ki naj jih upoštevajo načrtovalci, proizvajalci in dobavitelji napihljive igralne opreme. Določa informacije, ki jih je treba priložiti opremi. Zahteve so bile določene ob upoštevanju dejavnika tveganja na podlagi razpoložljivih podatkov. Ta standard določa zahteve, ki bodo otroka zaščitile pred nevarnostmi, ki jih morda ne more predvideti med uporabo opreme v skladu z načrtovano uporabo ali na način, ki ga je mogoče razumno pričakovati. Ta standard se ne uporablja za napihljivo vodno igralno opremo in opremo za prosti čas, domače napihljive igrače, napihljive stavbe, napihljive izdelke, ki se uporabljajo izključno za zaščito, napihljive izdelke, ki se uporabljajo za reševanje, ali druge vrste napihljivih igrač, ki niso namenjene predvsem skakanju ali drsenju.

General Information

Status
Withdrawn
Publication Date
03-Sep-2013
Withdrawal Date
14-May-2019
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
15-May-2019

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Napihljiva igralna oprema - Varnostne zahteve in preskusne metodeAufblasbare Spielgeräte - Sicherheitstechnische Anforderungen und PrüfverfahrenÉquipements de jeux gonflables - Exigences de sécurité et méthodes d'essaiInflatable play equipment - Safety requirements and test methods97.200.50,JUDþHToys97.190Otroška opremaEquipment for childrenICS:Ta slovenski standard je istoveten z:EN 14960:2013SIST EN 14960:2013en,fr,de01-november-2013SIST EN 14960:2013SLOVENSKI

STANDARDSIST EN 14960:20071DGRPHãþD
SIST EN 14960:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14960
September 2013 ICS 97.190; 97.200.50 Supersedes EN 14960:2006English Version
Inflatable play equipment - Safety requirements and test methods
Équipements de jeu gonflables - Exigences de sécurité et méthodes d'essai

Aufblasbare Spielgeräte - Sicherheitstechnische Anforderungen und Prüfverfahren This European Standard was approved by CEN on 29 June 2013.

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
CEN-CENELEC Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14960:2013: ESIST EN 14960:2013

EN 14960:2013 (E) 2 Contents Page Foreword ..............................................................................................................................................................4 Introduction .........................................................................................................................................................5 1 Scope ......................................................................................................................................................6 2 Normative references ............................................................................................................................6 3 Terms and definitions ...........................................................................................................................7 4 Safety requirements ..............................................................................................................................9 4.1 Materials .................................................................................................................................................9 4.1.1 Fabrics ....................................................................................................................................................9 4.1.2 Thread .................................................................................................................................................. 10 4.1.3 Netting .................................................................................................................................................. 10 4.1.4 Ropes ................................................................................................................................................... 10 4.1.5 Zips ....................................................................................................................................................... 11 4.1.6 Dangerous substances and decorative finishes ............................................................................. 11 4.2 Design .................................................................................................................................................. 11 4.2.1 Anchorage ........................................................................................................................................... 11 4.2.2 Structural Integrity .............................................................................................................................. 12 4.2.3 Access/egress ..................................................................................................................................... 13 4.2.4 Blowers ................................................................................................................................................ 16 4.2.5 Entrapment .......................................................................................................................................... 16 4.2.6 Hard objects, sharp angles and edges ............................................................................................. 21 4.2.7 Electrical installations ........................................................................................................................ 21 4.2.8 Siting .................................................................................................................................................... 21 4.2.9 Containment ........................................................................................................................................ 23 4.2.10 Wall heights on slopes ....................................................................................................................... 24 4.2.11 Run-out ................................................................................................................................................ 25 4.2.12 Ventilation ............................................................................................................................................ 25 4.3 Number of users ................................................................................................................................. 25 4.4 Supervision ......................................................................................................................................... 26 5 Test methods and reports .................................................................................................................. 26 6 Information to be provided by the supplier/manufacturer ............................................................. 26 6.1 General product information ............................................................................................................. 26 6.2 Pre-information ................................................................................................................................... 27 6.3 Installation information ...................................................................................................................... 27 6.4 Operating information ........................................................................................................................ 27 6.5 Inspection and maintenance information ........................................................................................ 28 7 Inspection, maintenance and alteration ........................................................................................... 28 7.1 Inspection ............................................................................................................................................ 28 7.1.1 Routine Inspection.............................................................................................................................. 28 7.1.2 Annual inspection ............................................................................................................................... 29 7.2 Maintenance ........................................................................................................................................ 29 7.2.1 General ................................................................................................................................................. 29 7.2.2 Routine maintenance ......................................................................................................................... 29 7.2.3 Corrective maintenance ..................................................................................................................... 30 7.3 Alteration ............................................................................................................................................. 30 8 Marking ................................................................................................................................................ 30 9 Documentation .................................................................................................................................... 31 Annex A (normative)

Calculation of number of anchor-points ................................................................... 32 Annex B (informative)

The Beaufort Scale of wind force ............................................................................. 33 Annex C (normative)

Test method for grounding ......................................................................................... 34 SIST EN 14960:2013

EN 14960:2013 (E) 3 Annex D (normative)

Test methods for entrapment ...................................................................................... 35 D.1 General ................................................................................................................................................. 35 D.2 Head and neck entrapment ................................................................................................................ 35 D.2.1 Completely bound openings .............................................................................................................. 35 D.2.2 Partially bound and V-shaped openings ........................................................................................... 36 D.3 Entrapment of clothing (Toggle test) ................................................................................................ 41 D.3.1 Apparatus ............................................................................................................................................. 41 D.3.2 Procedure ............................................................................................................................................. 43 D.4 Finger entrapment ............................................................................................................................... 43 D.4.1 Apparatus ............................................................................................................................................. 43 D.4.2 Procedure ............................................................................................................................................. 44 Annex E (normative)

Test method for tear strength ..................................................................................... 45 E.1 Maximum value tongue tear, apparatus ............................................................................................ 45 E.2 Preparation of test specimens ........................................................................................................... 45 E.3 Conditioning ........................................................................................................................................ 46 E.4 Preconditioning ................................................................................................................................... 46 E.5 Characteristics of test atmospheres ................................................................................................. 46 E.6 Methods of conditioning ..................................................................................................................... 46 E.7 Procedure ............................................................................................................................................. 47 E.8 Calculation and expression of results .............................................................................................. 47 E.9 Test report ............................................................................................................................................ 49 Bibliography ...................................................................................................................................................... 50

SIST EN 14960:2013

EN 14960:2013 (E) 4 Foreword This document (EN 14960:2013) has been prepared by Technical Committee CEN/TC 136 “Sports, playground and other recreational facilities and equipment”, the secretariat of which is held by DIN. 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 March 2014, and conflicting national standards shall be withdrawn at the latest by March 2014. 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. This document supersedes EN 14960:2006. In relation to EN 14960:2006, the following main changes have been made:  changes with regard to the run outs on slides to correct one area where the contents of the original standard proved debatable;  minor amendments to improve safety aspects together with facilitating clarity of interpretation;  minor editing to improve the content accuracy of the document;  amendments reflecting the changes with regard to entrapment as a result of the revision and re-issue of EN 1176 in 2008. 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. SIST EN 14960:2013

EN 14960:2013 (E) 5 Introduction Play is the means by which children discover and understand the world in which they live and is an essential element in a child’s physical and mental growth. It is important for children’s rounded development that, through play, they arrive at an understanding of danger, which provides a basis for assessing safety in a variety of situations. The balance between challenge and safety is an important consideration. The inflatable play equipment referred to in this standard can provide different levels of challenge and excitement. This European Standard aims to minimise the level of risk and the possibility of serious injury while allowing children to enjoy themselves when playing in or on inflatable equipment. This standard acknowledges the difficulties of addressing safety issues by age criteria alone because the ability to handle risk is based on the individual user’s level of skill and not age. Moreover, users other than the intended age range will make use of the inflatable equipment, in which case, the provisions of this standard still apply. It is not the purpose of the requirements of this standard to affect a child’s need to play nor to lessen the contribution that inflatable play equipment makes either to the child’s development or meaningful play from an educational point of view. Where inflatable play equipment is combined with other items of children’s playground equipment, the relevant standards applying to the other items of equipment should also be consulted. SIST EN 14960:2013

EN 14960:2013 (E) 6 1 Scope This European Standard is applicable to inflatable play equipment intended for use by children fourteen years and under both individually and collectively.

This standard specifies safety requirements for inflatable play equipment for which the primary activities are bouncing and sliding. It sets measures to address risks and also to minimise accidents to users for those involved in the design, manufacture and supply of inflatable play equipment. It specifies information to be supplied with the equipment. The requirements have been laid down bearing in mind the risk factor based on available data.

This standard specifies the requirements that will protect a child from hazards that he or she may be unable to foresee when using the equipment as intended, or in a manner that can be reasonably anticipated. This standard is not applicable to inflatable water-borne play and leisure equipment, domestic inflatable toys, air-supported buildings, inflatables used solely for protection, inflatables used for rescue, or other types of inflatable toys where the primary activity is not bouncing or sliding. 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 the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 71-3, Safety of toys — Part 3: Migration of certain elements EN 1177, Impact attenuating playground surfacing — Determination of critical fall height EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529/A1) EN ISO 1421:1998, Rubber- or plastics-coated fabrics — Determination of tensile strength and elongation at break (ISO 1421:1998) EN ISO 2307, Fibre ropes — Determination of certain physical and mechanical properties (ISO 2307) EN ISO 2411, Rubber- or plastics-coated fabrics — Determination of coating adhesion (ISO 2411) EN ISO 9554, Fibre ropes — General specifications (ISO 9554) EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025) SIST EN 14960:2013

EN 14960:2013 (E) 7 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. NOTE In order not to confine the application of this European Standard to those items of equipment currently in use and hence allow freedom of design for the manufacture of new equipment, only the fundamental forms of equipment and motion are listed. 3.1 inflatable play equipment structure relying on a continuous supply of air to maintain its shape, on or in which users may play, bounce and/or slide Note 1 to entry: Also referred to as an/the inflatable.

a) Flat-bed (4 open sides) b) Castle (3 walled sides, 1 open side) c) A-Frame inflatable (3 walled sides, 1 open side)

d) Bounce/Slide combination
e) Multi-Play Centre f) Obstacle course

g) Inflatable slide h) Enclosed inflatable i) Soft mountain Figure 1 — Examples of inflatable play equipment SIST EN 14960:2013

EN 14960:2013 (E) 8 3.2 blower powered machine used to continuously inflate the structure

3.3 connection tube part of the inflatable structure to which the blower is connected 3.4 controller person, company or hirer (those who hire to others), having responsibility for the overall control, inspection and maintenance of the equipment 3.5 operator person appointed by a controller to be in charge of the operation of the equipment at any time when it is available for use by the public 3.6 attendant person working under the control and direction of an operator to assist in the operation of the equipment 3.7 inspection body organisation, part of an organisation or individual with the appropriate competence to carry out one or more of the following inspections:  design review;  assessment of conformity to design;  initial testing;  annual main inspection 3.8 free height of fall greatest vertical distance from the clearly intended body support to the impact area below

[SOURCE: EN 1176-1:2008, 3.6] 3.9 critical fall height maximum free heights of fall, for which a surface will provide an acceptable level of impact attenuation 3.10 open side any external side of an inflatable with no containing wall 3.11 step step to aid the access/egress of users into and out of the playing area of the inflatable, making the transition between the height of the playing area and the ground 3.12 ramp ramp to aid the access/egress of users into and out of the playing area of the inflatable, making the transition between the height of the playing area and the ground SIST EN 14960:2013

EN 14960:2013 (E) 9 3.13 platform any surface on which a user may stand 3.14 squeeze play item which is often attached to and forms part of inflatable play equipment, the purpose of which is to squeeze the user whilst not entrapping them while allowing the user to pass through a gap with a degree of difficulty 3.15 entrapment hazard in which a body, or part of a body, or clothing, can become trapped 3.16 impact area area surrounding the open side(s) of an inflatable 3.17 run-out intended deceleration zone at the bottom of a slide 3.18 anchorage system method of fixing an inflatable to the ground using stakes 3.19 ballast system method of fixing an inflatable to the ground using weights 3.20 user height maximum height of persons allowed to use the inflatable 3.21 free space space in, on or around the inflatable that can be occupied by a user undergoing a movement forced by the equipment (for example sliding, bouncing) 3.22 playing area space in or on the inflatable, intended for play 3.23

falling space space in, or around the inflatable that can be passed through by a user falling from an elevated part of the equipment Note 1 to entry: The falling space commences at the free height of fall.

4 Safety requirements 4.1 Materials 4.1.1 Fabrics Fabrics shall be flame retardant. SIST EN 14960:2013

EN 14960:2013 (E) 10 Fabrics, and joins in fabrics, shall be of adequate tear and tensile strength for the weight of the intended user and have sufficient air retention to enable the inflatable, when pressurised to the level specified in the operations manual, to resume its shape after distortion under load. Fabrics of: a) minimum tear strength 350 N (see test method Annex E), b) minimum tensile strength 1 850 N (see EN ISO 1421), c) minimum coating adhesion 100 N (see EN ISO 2411), shall be used in those structural parts of the inflatable where force or stress is applied by the user. 4.1.2 Thread Threads shall be non-rotting yarn and at least 88 N tensile strength. Stitching shall be lock-stitch. The length of individual stitches shall be a minimum of 3 mm and a maximum of 8 mm. 4.1.3 Netting Retention netting is commonly used to define the playing area, to contain the users and to retain items of mobile play equipment such as balls. Retention netting shall not significantly impair visibility. Retention netting shall be strong enough to contain the largest/heaviest user for whom the inflatable is designed. In order to prevent users from climbing retention netting the mesh size, where the netting is more than 1 m vertical height and accessible to the user, shall be 30 mm or less to exclude users’ feet. Where netting is used for roofs and is accessible to the user, the mesh size shall be small enough to prevent the 8 mm finger rod from passing through (see Figure 2). Dimensions in millimetres

Figure 2 — 8 mm finger rod Clamber netting (commonly laid on slopes to form foot and hand holds) shall be securely fixed to prevent lifting by the user. The rope from which it is made shall be at least 12 mm in diameter and shall be securely knotted. Strand ends shall be treated to prevent fraying. Care shall be taken when heat sealing so as not to form hard or sharp edges. 4.1.4 Ropes Ropes shall be fixed at both ends and the total amplitude of swing shall not exceed 20 % of the distance between the fixing points such that it shall not be possible to make a loop in the rope of large enough diameter to allow probe E to pass through (see Figure D.1). NOTE This requirement is intended to remove the risk of strangulation. The rope diameter shall be between 18 mm and 45 mm. SIST EN 14960:2013

EN 14960:2013 (E) 11 Fibre ropes (textile type) shall conform to EN ISO 9554 or EN ISO 2307. Alternatively, a works certificate shall be supplied stating the material used and the safe working load. Monofilament plastics ropes shall not be used. 4.1.5 Zips Zips shall withstand air pressures and tension generated within the structure. Zips used for entrances and exits shall be reliable, easy to use, able to open from both sides and shall allow access and egress by adults. Zips used for deflation purposes shall have the puller hidden from view (e.g. by a flap or pocket). 4.1.6 Dangerous substances and decorative finishes Dangerous substances shall not be used for inflatable play equipment in such a way that they can cause adverse health affects to the user. Paints and other decorative finishes shall conform to EN 71-3. NOTE Attention is drawn to the provisions of European Regulation (EC) No. 1907/2006 [2]. Such materials include, for example, asbestos, lead, formaldehyde, coal tar oils, carbolineums and polychlorinated biphenyls (PCBs). 4.2 Design 4.2.1 Anchorage The inflatable shall be provided with an anchorage and/or ballast system and any necessary accessories enabling the inflatable to be securely fixed to the ground. Each inflatable shall have at least six anchorage points. The number of anchorage points shall be calculated in accordance with Annex A. They shall be distributed around the perimeter of the inflatable (see also 4.2.3) and shall be fitted with metal ends. The maximum wind-speed in which inflatables shall be used outdoors is 38 km/h (Force 5 on the Beaufort Scale); see Annex B. When used outdoors, the inflatable shall be secured to the ground, preferably with ground stakes where the ground is suitable. Each anchorage point on the inflatable and all of the components of the anchorage and/or ballast system, e.g. ropes, webbings, metal attachments, stakes, weights, shall withstand a force of 1 600 N. The direction of the exerted force shall be at an angle to the ground of 30° to 45°. Ground stakes shall incline away from the direction of the exerted force. Ground stakes shall be a minimum of 380 mm in length and a minimum of 16 mm in diameter and their tops shall be rounded. The system shall expose no more than 25 mm of the stake above ground level (see Figure 3). When the inflatable is used indoors, the anchorage and/or ballast system should be used, when necessary, to maintain stability. SIST EN 14960:2013

EN 14960:2013 (E) 12 Dimensions in millimetres

Key 1 direction of force 2 rounded tops 3 ground level Figure 3 — Examples of ground stakes On hard standing where ground stakes cannot be used, the inflatable shall be secured to the ground by equally effective method, e.g. attaching each of the anchorage points to fittings already in the ground, or to sandbags or other weights, if these are capable of supporting the 1 600 N load. If the inflatable is secured to a vehicle or other movable machinery, such vehicles or machinery shall be immobilised and be under the control of an operator. 4.2.2 Structural Integrity The minimum air pressure inside the structural parts of the inflatable shall be 1 kPa (100 mm water gauge). Inflated chambers that are entered by the user are not considered to be structural parts of the inflatable, e.g. enclosed dome type inflatables. Pressure in the playing area of soft mountains shall be no greater than 0,25 kPa (25 mm water gauge), but shall maintain a pressure sufficient to prevent grounding. Pressure in the surrounding safety apron of soft mountains shall be at least 1 kPa (100 mm water gauge); see Figure 4. The depth of the trough on the surface of any platform shall be a maximum of 33 % of the width of the adjacent panel, measured when inflated (see Figure 5). Containing walls shall be vertical (90 ± 5)°. Towers that support containing walls shall be in the same plane. Containing walls and towers shall be strong enough to contain the largest and/or heaviest user for whom the inflatable is designed. Playing areas, surrounding safety aprons, steps and/or ramps shall support the weight of the largest and/or heaviest user for whom the inflatable is designed, without grounding. See Annex C for the test method.

Key 1 surrounding safety apron 2 tread depth 3 playing area Figure 4 — Section through a soft mountain SIST EN 14960:2013

EN 14960:2013 (E) 13

Key a depth of trough — measured when inflated b width of adjacent panel Figure 5 — Trough depth 4.2.3 Access/egress A step or ramp shall be wide enough to cover the entire access/egress aperture with overlap, according to Figure 6. A step or ramp shall have a tread depth of a minimum of 1,5 times the height of the adjacent playing area platform to which it is attached (see Figure 6). The playing area of soft mountains shall be completely surrounded by an inflated safety apron. This safety apron shall have a minimum tread depth of 1,6 m or 0,5 times the height of the playing area measured from the ground w

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