ISO INTERNATIONAL STANDARD 4039-1 Firstedition 1998-08-15 Road vehicles - Pneumatic braking systems- Part 1: Pipes, male fittings and tappedholes with facial sealing surface Vehicules routiers - Dispositifs de treinage pneumatique Partie 1: Tuyauteries, raccords males et logements a portee tacia/e TSo Reference number ISO 4039-1: 1998(E) ISO 4039-1:1998(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through isO technica committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. isO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an InternationalStandard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 4039-1 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 2, Braking systems and equipment. This first edition of iSO 4039-1 cancels and replaces ISO 4039:1977, of which it constitutes a technical revision IsO 4039 consists of the following parts, under the general title Road vehicles - Pneumatic braking systems: Part 1 : Pipes, male fittings and tapped holes withfacial sealing surlace Part2 :Pipes, male fittings and tapped holes withconical sealing surface Annex A to this part of iSO 4039 is given for information only. ISO1998 All rights reserved. Unless otherwisespecified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher International Organization for Standardization Case postale 56. CH-1211 Geneve 20 · Switzerland Internet [email protected] ii INTERNATIONALSTANDARDISO ISO4039-1:1998(E) Roadvehicles-Pneumaticbrakingsystems- Part 1: Pipes,male fittings andtapped holes with facial sealing surface 1 Scope Thispartof iSO 4039 specifies theessential dimensions and material requirementsformetallic and thermoplastic AnnexAgives,forinformatian,arecommendationastohowtoindicateconformitywiththispartofiO4039 2Normativereference Thefollowing standard contains provisions which,through referenice in this text, conistitute provisions of this part ot ISO 4039. At the time of publication, the edition indicated was valid. All standards are subject to revision,and most recent edition of the standard indicatedbelow.Members of IECand ISO maintain registers ofcurrently valid International Standards. 3 Pipes 3.1Dimensions specified in table 2. Table1-Dimensionsofpipes Dimensions in milimetres Extermal diameter, 10 12 14 15 16 18 20 3.2Materials Pipes maybemade ofmetal (examples:steel,copper,copperalloys,etc.)orthemoplastics (example:polyamide etc.). 3.3Surlace condition The innerand outersurfaces ofthepipes shall be freefrom oxidation,and shall be smoothand clean The outer surface shall be protected against corrosion. Sensitivity to corrosion shall be evaluated in accordance exposureto.salt sprayot200h. 1