ISO INTERNATIONAL STANDARD 19894 First edition 2019-05 Walking trolleys Requirements and test methods Trolleys de marche - Exigences et methodes d'essai Reference number ISO 19894:2019(E) Tso @IS02019 IS0 19894:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 19894:2019(E) Contents Page Foreword ..V Introduction. ..vi 1 Scope. 2 Normative references 3 Terms and definitions 4 General requirements and test methods ..5 4.1 Risk analysis .5 4.2 Intended performance. .5 4.3 Clinical evaluation and investigation .6 4.4 Walking trolleys that can be dismantled 4.5 Fasteners .6 4.6 User mass/load limits ..6 4.7 Apparatus ..6 4.8 Test conditions ..8 5 Materials ..8 5.1 General ..8 5.2 Flammability ..8 5.2.1 General. .8 5.2.2 Upholstered parts and moulded parts 5.3 Biocompatibility and toxicity... 5.4 Infection and microbiological contamination. .9 5.4.1 Cleaning and disinfection. 5.4.2 Resistance against temperature alternations 9 5.4.3 Animaltissue 5.5 Resistance to corrosion ..9 6 Ingress of liquids .10 6.1 Ingress of liquids ..10 6.1.1 Requirements ..10 6.1.2 Test method ..10 7 Temperatures of parts that come in contact with human skin ..10 8 Safety of moving and folding parts ..11 8.1 Squeezing ..11 8.2 Mechanical wear. ..12 9 Prevention of traps for parts of the human body ..12 9.1 Holes and clearances. ..12 9.2 V-shaped openings... ..13 10 Folding and adjusting mechanisms. ..13 10.1 General, ..13 10.2 Locking mechanisms .13 10.3 Folding function. .13 10.3.1 Reguirements .13 10.3.2 Retaining test and strength test of folding mechanism ..13 11 Lifting and carrying means. .13 11.1 General. ..13 11.2 Requirement 11.3 Test method ..14 12 Strength, torque, durability. ..15 12.1 Strength of the resting seat. 12.1.1 Requirements ..15 @ IS0 2019 - All rights reserved ii

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