1、 ISO 2012 Glass-reinforced thermosetting plastics (GRP) pipes and fittings Test methods to prove the design of bolted flange joints AMENDMENT 1 Tubes et raccords en plastiques thermodurcissables renforcs de verre (PRV) Mthodes dessai pour confirmer la conception des assemblages brides boulonnes AMEN
2、DEMENT 1 INTERNATIONAL STANDARD ISO 8483 First edition 2003-12-01 Reference number ISO 8483:2003/Amd.1:2012(E) AMENDMENT 1 2012-02-01 ISO 8483:2003/Amd.1:2012(E) ii ISO 2012 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2012 All rights reserved. Unless otherwise specified, no part of this pub
3、lication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Gen
4、eva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ISO 8483:2003/Amd.1:2012(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of p
5、reparing International Standards is normally carried out through ISO technical 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,
6、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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main ta
7、sk of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attenti
8、on is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Amendment 1 to ISO 8483:2003 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and va
9、lves for the transport of fluids, Subcommittee SC 6, Reinforced plastics pipes and fittings for all applications. ISO 2012 All rights reserved iii Glass-reinforced thermosetting plastics (GRP) pipes and fittings Test methods to prove the design of bolted flange joints AMENDMENT 1 Title Correct the t
10、itle to read as follows: Plastics piping systems for pressure and non-pressure drainage and sewerage Glass-reinforced thermosetting plastics (GRP) systems based on unsaturated polyester (UP) resin Test methods to prove the design of bolted flange joints Page 1, Scope Replace the first sentence as fo
11、llows: This International Standard specifies methods of test for bolted flange joints intended to be used in plastics piping systems, for buried or non-buried, pressure and non-pressure drainage and sewerage made of glass-reinforced thermosetting plastics (GRP) based on unsaturated polyester (UP) re
12、sin. Page 7, 7.4.2.1 Replace the subclause with the following: Steadily increase the hydrostatic pressure to 2,0 times the nominal pressure of the joint, expressed in bars, and maintain within 2 % for not less than 24 h (see Table 1). Page 7, 7.5.8 Replace the subclause with the following: Steadily
13、increase the hydrostatic pressure to 2,0 times the nominal pressure of the joint, expressed in bars, and maintain within 2 % for not less than 24 h (see Table 1). Page 10, Table 1 Replace Table 1 with the following in which some of the table headings have been updated as well as the test pressure fo
14、r resistance to internal pressure and end thrust: ISO 8483:2003/Amd.1:2012(E) ISO 2012 All rights reserved 1 ISO 8483:2003/Amd.1:2012(E) Summary of test requirements Property to be tested Test to be performed Test pressure Duration Subclause number External pressure differential Negative pressure -0
15、,8 bar (-0,08 MPa) 1 h 7.2 and Figure 2 a) Initial leakage Initial pressure 1,5 PN 15 min 7.3 and Figure 2 a) Resistance to internal pressure and end thrustPreliminary pressure 1,5 PN 15 min 7.4.1.1 to 7.4.1.2 and Figure 2 a) Positive cyclic pressure atmospheric to 1,5 PN and back to atmospheric 10
16、cycles of 1,5 to 3,0 min each 7.4.1.3 to 7.4.1.5 and Figure 2 a) Maintained pressure 2,0 PN 24 h 7.4.2.1 to 7.4.2.3 and Figure 2 a) Resistance to bending with end thrust Preliminary pressure 1,5 PN 15 min 7.5.1 to 7.5.7 and Figure 3 Maintained pressure 1,5 PN 24 h 7.5.9 to 7.5.11 and Figure 3 Short-
17、duration resistance Maintained pressure 2,5 PN or 3,0 PN 100 h 6 min 7.6.5 and Figure 2 a) Bolt-tightening torque Visual inspection Not applicable Not applicable 7.7 and Figure 1 NOTE 1 Nominal pressure (PN) is an alphanumeric designation of pressure related to the resistance of a component of a pip
18、ing system to internal pressure. For the purposes of this table PN is to be expressed in bars. NOTE 2 A test sequence other than that given in this table may be used. 2 ISO 2012 All rights reservedISO 8483:2003/Amd.1:2012(E) ISO 2012 All rights reserved ICS 23.040.20; 23.040.45 Price based on 2 pages
