ISO INTERNATIONAL STANDARD 18869 First edition 2017-07 Hydraulic fluid power Test methods for couplings actuated with or without tools Transmissions hydrauliques -Methodes d'essai pour les raccords actionné avec ou sans outils Reference number IS0 18869:2017(E) ISO @IS02017 IS0 18869:2017(E) COPYRIGHTPROTECTEDDOCUMENT @ 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 or by anymeans, electronic ormechanical, 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 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 ii IS0 2017-Allrights reserved IS018869:2017(E) Contents Page Foreword .V Introduction. .vi 1 Scope 1 2 Normative references .1 3 Terms and definitions 4 Selectionoftestassemblies .3 5 General test conditions. .3 5.1 Safety considerations 3 5.2 Thread lubrication. 4 5.3 Torque 4 5.4 Test fluid and temperature .4 5.5 Test pressure. 4 5.6 Test report. 4 6 Test apparatus. 5 7 Connect force or torque test .5 8 Disconnectforce or torque test .6 9 Leakage test. .7 9.1 Low pressure, coupled 7 9.2 Low-pressure, uncoupled (valved only) .9 9.3 Maximum working pressure, coupled .10 9.4 Maximum working pressure, uncoupled (valved only) .10 10 Vacuum test. .10 10.1 General .10 10.2 Coupled test .10 10.3 Uncoupled test (valved only) .12 11 Air inclusion test .12 12 Fluid loss test. .14 13 Pressure drop (Ap) test .15 14 Static pressure test .16 14.1 Coupled. .16 14.2 Uncoupled (valved type only) .17 15 Specific temperature test .17 15.1 Maximumworkingtemperatureexposure .17 15.1.1 General. .17 15.1.2 Coupled .17 15.1.3 Uncoupled (valved only) .17 15.2 Maximumworkingtemperatureservice .18 15.2.1 Coupled .18 15.2.2 Uncoupled (valved only) .18 15.3 Minimum working temperature .18 15.3.1 Coupled .18 15.3.2 Uncoupled (valved only) .18 16 Endurance test .18 16.1 Couplingsotherthan screw-to-connecttypes .18 16.2 Screw-to-connect couplings .19 16.2.1 Principle .19 16.2.2 Procedure. .19 @ IS0 2017 - All rights reserved ii