ISO INTERNATIONAL STANDARD 9170-1 Third edition 2017-07 Terminal units for medical gas pipeline systems - Part 1: Terminal units for use with compressed medical gases and vacuum Prises murales pour systemes de distribution de gaz médicaux Partie 1: Prises murales pour les gaz médicaux comprimés et le vide Reference number IS0 9170-1:2017(E) International Organization for Standardization @ IS0 2017 ZHEJIANG INST OF STANDARDIZATION C1 5956617 IS0 9170-1:2017(E) COPYRIGHT PROTECTED DOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Internatinir DrganizationforStandardization Licensee-ZHEJIANG INST.OF STANDARDIZoISQ37 -All rights reserved Not for Resale, 2017/9/27 05:45:27 No reproduction or networking permited without license from IHS IS0 9170-1:2017(E) Contents Page Foreword ..V Introduction. ..vi 1 Scope. 2 *Normative references 3 Terms and definitions 4 General requirements. 4.1 Safety .7 4.2 *Alternative construction ..7 4.3 Materials.. .7 5 Design requirements. .8 5.1 Medical gas supply. ..8 5.2 Terminal units for different pressures .9 5.3 Retention of gas specificity. .9 5.4 Gas-specific connection point 9 5.5 Terminal unit check valve. .9 5.6 Terminal unit maintenance valve .9 5.7 Connection of terminal units to the pipeline (see also 9.2) ..10 5.8 Socket .10 5.9 Compliance. .10 5.10 Endurance (connection/release) ..10 5.10.1 Socket ..10 5.10.2 Probe ..10 5.11 *Pressure drop .10 5.12 Connection force and torque. .11 5.13 Disconnection force and torque ..11 5.14 Mechanical strength .11 5.15 Leakage. ..12 5.16 Gas specificity .12 5.17 Effective connection of probes .12 5.18 Electrical requirements. ..12 6 Constructional requirements. .12 6.1 Cleaning. .12 6.2 Lubricants. ..12 7 Test methods. .12 7.1 General .12 7.2 Test for endurance. ..13 7.3 Test for pressure drop ..13 7.4 Test for connection force and torque. .15 7.5 Test for disconnection force and torque .15 7.6 Test for mechanical strength. ..16 7.7 Test for leakage ..16 7.8 Test for gas specificity ..17 7.9 Test for effective connection of probe. .17 7.10 Test for durability of markings and colour coding ..17 8 Marking, colour coding and packaging ..17 8.1 Marking ..17 8.2 Colour coding 8.3 Packaging. ..18 9 Information to be supplied by the manufacturer. ..18 9.1 Technical description ..18 9.2 Instructions .18 ntemaional oganzation@S27-All rights reserved iii icensee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 dwithout license from IHS Not for Resale, 2017/9/27 05:45:27