ISO-22088-2-2006.pdf
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1、 Reference number ISO 22088-2:2006(E) ISO 2006 INTERNATIONAL STANDARD ISO 22088-2 First edition 2006-08-15 Plastics Determination of resistance to environmental stress cracking (ESC) Part 2: Constant tensile load method Plastiques Dtermination de la fissuration sous contrainte dans un environnement
2、donn (ESC) Partie 2: Mthode sous contrainte de traction constante Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 07:45:20 MDTNo reproduction or networking permitted without lice
3、nse from IHS -,-,- ISO 22088-2:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing
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6、riat at the address given below. ISO 2006 All rights reserved. Unless otherwise specified, 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 either ISO at the addre
7、ss below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reserved Copyright International Organization for
8、Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 07:45:20 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 22088-2:2006(E) ISO 2006 All rights reserved iii Contents Page Foreword iv 1 Scope .
9、 1 2 Normative references. 1 3 Principle. 2 4 Apparatus 2 5 Conditioning and test conditions 3 5.1 Conditioning 3 5.2 Test temperature. 3 5.3 Test medium 3 6 Test stress. 4 6.1 Maximum permissible stress. 4 6.2 Method A 4 6.3 Method B 4 6.4 Method C 4 7 Test specimens. 4 7.1 General. 4 7.2 Shape and
10、 dimensions. 4 7.3 Number 5 7.4 Preparation 5 8 Procedure 6 9 Expression of results . 7 9.1 Method A 7 9.2 Method B 7 9.3 Method C 7 10 Precision 7 11 Test report . 8 Annex A (informative) Examples of stresses to be applied. 9 Bibliography. 10 Copyright International Organization for Standardization
11、 Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 07:45:20 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 22088-2:2006(E) iv ISO 2006 All rights reserved Foreword ISO (the International Organization for St
12、andardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing 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 rig
13、ht 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. International
14、 Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task 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 a
15、n International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention 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. ISO
16、22088-2 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 6, Ageing, chemical and environmental resistance. It cancels and replaces ISO 6252:1992, which has been technically revised. ISO 22088 consists of the following parts, under the general title Plastics Determination of r
17、esistance to environmental stress cracking (ESC): Part 1: General guidance Part 2: Constant tensile load method (replacement of ISO 6252:1992) Part 3: Bent strip method (replacement of ISO 4599:1986) Part 4: Ball or pin impression method (replacement of ISO 4600:1992) Part 5: Constant tensile deform
18、ation method (new test method) Part 6: Slow strain rate method (new test method) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 07:45:20 MDTNo reproduction or networking permitt
19、ed without license from IHS -,-,- INTERNATIONAL STANDARD ISO 22088-2:2006(E) ISO 2006 All rights reserved 1 Plastics Determination of resistance to environmental stress cracking (ESC) Part 2: Constant tensile load method 1 Scope This part of ISO 22088 specifies methods for the determination of envir
20、onmental stress cracking (ESC) of thermoplastics when they are subjected to a constant tensile load in the presence of chemical agents. It is applicable to test specimens prepared by moulding and/or machining and can be used both for the assessment of ESC of plastic materials exposed to different en
21、vironments, and for the determination of ESC of different plastic materials exposed to a specific environment. This is essentially a ranking test and is not intended to provide data to be used for design or performance prediction. NOTE Methods for the determination of environmental stress cracking b
22、y means of a constant-strain test are specified in ISO 22088-3, ISO 22088-4 and ISO 22088-5. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edit
23、ion of the referenced document (including any amendments) applies. ISO 293, Plastics Compression moulding of test specimens of thermoplastic materials ISO 294-1, Plastics Injection moulding of test specimens of thermoplastic materials Part 1: General principles, and moulding of multipurpose and bar
24、test specimens ISO 527-2:1993, Plastics Determination of tensile properties Part 2: Test conditions for moulding and extrusion plastics ISO 2818, Plastics Preparation of test specimens by machining ISO 3167, Plastics Multipurpose test specimens ISO 22088-1:2006, Plastics Determination of resistance
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