ISO INTERNATIONAL STANDARD 6806 Fourth edition 2017-06 Rubber hoses and hose assemblies for use in oil burners Specification Tuyaux et flexibles en caoutchouc pour bruleurs a fuel - Spécifications Reference number IS0 6806:2017(E) International Organization for Standardization @ IS0 2017 =ZHEJIANG INST OF STANDARDIZATION C1 5956617 vided by IHS underI itted without license from IHS IS0 6806:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS02017,PublishedinSwitzerland 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. ISOcopyrightoffice 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 Internatinair PrganizationforStandardization ensee-ZHEJIANG INSTOF STANDARDIzARoISQa7 - All rights reserved Not for Resale, 2017/8/21 02:12:13 etworking permitted without license from IHS IS0 6806:2017(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Construction ..2 5 Dimensions and tolerances .2 5.1 Inside diameter. .2 5.2 Bend radii .2 5.3 Thickness of lining and cover. .3 6 Physicalrequirementsforliningand cover .3 7 Physical requirements for hoses and hose assemblies .3 7.1 Hydrostatic tests... .3 7.1.1 Proof pressure test 3 7.1.2 Burst pressure test. .3 7.2 Oil swell 4 7.3 External pressure test .4 7.4 Low-temperature flexibility. 4 7.5 Flammability .4 7.6 Ozone resistance (cover only) 4 7.7 Impulsetest .4 8 Frequency of testing ..4 9 Type tests ..4 10 Marking ..5 Annex A (normative) Test frequency ..6 Annex B (informative) Production tests Annex C (normative) Determination of oil swell AnnexD(normative)Determinationofresistancetoexternalpressure .9 Annex E (normative) Determination offlammability ..11 Annex F (normative) Pressure impulse test ..13 Bibliography ..14 iii e=ZHEJIANG INSTOFSTANDARDIZATION C15956617 vithoutlicense from IHS