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1、 Reference number ISO 15908:2002(E) ISO 2002 INTERNATIONAL STANDARD ISO 15908 First edition 2002-12-01 Adhesives for thermoplastic piping systems Test method for the determination of thermal stability of adhesives Adhsifs pour rseaux de tuyauteries en matires thermoplastiques Mthode dessai de stabil
2、it thermique dun adhsif Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:48:26 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15908:2002(E) PDF d
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6、l 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 address below or ISOs member body in the country
7、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 2002 All rights reserved Copyright International Organization for Standardization Provided by IHS under licens
8、e with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:48:26 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15908:2002(E) ISO 2002 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide
9、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 right to be represented on that c
10、ommittee. 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 Standards are drafted in acco
11、rdance with the rules given in the ISO/IEC Directives, Part 3. 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 an International Standard requi
12、res 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 International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15908 was prepar
13、ed by the European Committee for Standardization (CEN) in collaboration with Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 5, General properties of pipes, fittings and valves of plastic materials and their accessories Test methods an
14、d basic specifications, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). Throughout the text of this document, read “.this European Standard.“ to mean “.this International Standard.“. Copyright International Organization for Standardization Provided b
15、y IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:48:26 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15908:2002(E) iv ISO 2002 All rights reserved Contents page Forewordv 1Scope 1 2Normative references 1 3Terms
16、and definitions1 4Principle1 5Safety 1 6Apparatus .1 7Test method2 8Expression of results 3 9Test report 3 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:48:26 MDTNo reproduc
17、tion or networking permitted without license from IHS -,-,- ISO 15908:2002(E) ISO 2002 All rights reserved v Foreword This document EN ISO 15908:2002 has been prepared by Technical Committee CEN/TC 193 “Adhesives“, the secretariat of which is held by AENOR, in collaboration with Technical Committee
18、ISO/TC 138 “Plastics, pipes, fittings and valves for transport of fluids“. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2003, and conflicting national standards shall be withdrawn at the l
19、atest by June 2003. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malt
20、a, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:48:26 MDTNo reproduction or networking per
21、mitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:48:26 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15908
22、:2002(E) ISO 2002 All rights reserved 1 1 Scope This European Standard specifies a test method for the determination of the thermal stability of chloride-containing solvent-based and solvent-free adhesives for joining thermoplastic piping systems. 2 Normative references This European Standard incorp
23、orates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this Eur
24、opean Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 923, Adhesives Terms and definitions. EN 1066, Adhesives Sampling. EN 1067, Adhesives Examination and preparation of sampl
25、es for testing. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions of EN 923 apply. 4 Principle A sample of dry adhesive film is heated in a test tube at 200 C. Indicator paper is used to indicate when the adhesive film releases hydrochloride. The time take
26、n for the adhesive film to release hydrochloride at 200 C is taken as a measure of the thermal stability of the adhesive. 5 Safety Persons using this standard shall be familiar with normal laboratory practice. This standard does not purport to address all the safety problems, if any, associated with
27、 its use. It is the responsibility of the user to establish safety and health practices and to ensure compliance with any European or national regulatory conditions. 6 Apparatus 6.1Heating block, for heating test tubes at (200 ? 0,5) C 6.2Test tubes, of glass, height 110 mm, diameter 5 mm and wall t
28、hickness 0,9 mm 6.3Universal indicator paper, pH 1-11 6.4Adhesive applicator, capable of producing an adhesive film of thickness 1mm mm 0 +0,1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale
29、, 04/24/2007 20:48:26 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15908:2002(E) 2 ISO 2002 All rights reserved 6.5Glass plate 6.6Stopwatch 7 Test method 7.1Condition the adhesive, the applicator and the test plate at (23 ? 2) C and (50 ? 5) % relative humidity for a
30、t least 6 h. The test plate and the adhesive applicator shall be free of dirt and grease. 7.2Take a representative sample of the adhesive to be tested as described in EN 1066 and examine and prepare it for testing as described in EN 1067. 7.3After conditioning, pour the adhesive on to the glass plat
31、e and spread it using the adhesive applicator. An adhesive film of 1 mm thickness shall be obtained. Allow the adhesive film to dry for (24 ? 2) h at (23 ? 2) C. 7.4Remove the adhesive film from the glass plate, and cut it into small pieces with maximum edge length of 2 mm. Fill the test tube with t
32、he pieces of the adhesive film (Figure 1) to a depth of approximately 10 mm which is equivalent to (50 ? 5) mg adhesive. A piece, approximately 10 mm length, of indicator paper is placed in the top of the test tube. Prepare three test tubes for each adhesive under test. Key 1Indicator paper 2Sample
33、adhesive (film pieces), approximately 10 mm length Figure 1 Test tube 7.5Bring the heating block to (200 ? 0, 5) C. Place the test tubes in the heating block and immediately start the stopwatch. The test tubes shall be (66 ? 1) mm in the heating block and (44 ? 1) mm above the heating block (Figure
34、2). When the lower part of the indicator paper changes colour (pH = 3, from yellow to red) stop the stopwatch. Record the time in minutes to the nearest 0,5 min. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/997254
35、5001 Not for Resale, 04/24/2007 20:48:26 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15908:2002(E) ISO 2002 All rights reserved 3 Dimensions in millimetres Key 1 Temperature (200 ? 0,5) C Figure 2 Heating block with test tubes 8 Expression of results Express the the
36、rmal stability of the adhesive in minutes as the arithmetic mean of the three results. 9 Test report The test report shall include: a) a reference to this European Standard; b) the type and identification of the adhesive tested; c) the thermal stability recorded for each test and the arithmetic mean
37、; d) any modification to the procedure described in this standard, and any circumstances which may have affected the results; e) the date of test. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Re
38、sale, 04/24/2007 20:48:26 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15908:2002(E) ICS 83.180 Price based on 3 pages ISO 2002 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:48:26 MDTNo reproduction or networking permitted without license from IHS -,-,-