ISO INTERNATIONAL STANDARD 20608 First edition 2018-04 Dentistry Powder jet handpieces and powders Médecine bucco-dentaire - Poudres et pieces a main de pulvérisation Reference number IS0 20608:2018(E) so Copyright International Organization for Standardization @IS02018 IS0 20608:2018(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2018 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 below or Iso's member body in the country of the requester. ISO copyright office CP401·Ch.deBlandonnet8 CH-1214 Vernier, Geneva Phone:+4122 749 0111 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland Copyightilerational Organizationfor Standardization @ IS0 2018 - All rights reserved IS0 20608:2018(E) Contents Page Foreword ..V Introduction. ...vi 1 Scope. 2 Normative references 3 Terms and definitions 4 Classification of handpieces ..3 5 Requirements .3 5.1 Powder for powder jet handpieces .3 5.1.1 General. .3 5.1.2 Biocompatibility .3 5.2 Powder jet handpieces. ..4 5.2.1 General. .4 5.2.2 Biocompatibility of materials .4 5.2.3 Drop test. 4 5.2.4 Noise level. .4 5.2.5 Surfaces. 4 5.2.6 Nozzle rotation .4 5.3 Air and water supply. 4 5.3.1 Drive air. .4 5.3.2 Spray water. 5.4 Excessiveairandwaterpressure .5 5.5 .5 Temperature 5.5.1 Maximum temperature during normal use 5 5.5.2 Applied parts not intended to supply heat to a patient .5 5.6 Vibrations. .5 5.7 Resistance to reprocessing .5 5.8 Leakage and/or ingress of water .5 5.9 Operating controls .6 5.10 Usability.. .6 5.11 Connection .6 5.11.1 General 5.11.2 Connections .6 5.12 Backflow preventer. ..6 5.13 Electrical safety .6 5.14 Test report.. .7 6 Sampling. .7 7 Measurement and test methods 7.1 General test conditions 7 7.2 Visual inspection. 1 7.2.1 Visual inspection of equipment .7 7.2.2 Visual inspection of documentation or test reports 1 7.3 Drive air. .7 7.3.1 Apparatus. .7 7.3.2 Procedure.. ..7 7.4 Spray water .7 7.4.1 Apparatus. 7.4.2 Procedure. ..8 7.5 Air and water pressure ..8 7.5.1 Apparatus. ..8 7.5.2 Procedure. ..8 7.6 Connection ..8 7.6.1 Apparatus. .8 Copyight Intematioal orgzISSahraizAl rights reserved iii