ISO 6450-2005 Rubber- or plastics-coated fabrics - Determination of resistance to liquids《橡胶或塑料涂覆织物 耐液体的测定》.pdf
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1、 Reference number ISO 6450:2005(E) ISO 2005INTERNATIONAL STANDARD ISO 6450 First edition 2005-09-01 Rubber- or plastics-coated fabrics Determination of resistance to liquids Supports textiles revtus de caoutchouc ou de plastique Dtermination de la rsistance aux liquides ISO 6450:2005(E) PDF disclaim
2、er 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 the editing. In downloading this file, parties acce
3、pt therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the f
4、ile; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2005 All right
5、s 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 of the
6、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 2005 All rights reservedISO 6450:2005(E) ISO 2005 All rights reserved iiiContents Page Foreword iv 1 Scope . 1 2 Norm
7、ative references . 1 3 Principle. 1 4 Test liquids for methods 1 and 2. 1 5 Test conditions for methods 1 and 2 2 6 Conditioning atmosphere for methods 1 and 2. 2 7 Apparatus for methods 1 and 2. 2 8 Method 1 Immersion and subsequent removal of excess liquid by wiping. 3 9 Method 2 Immersion in a vo
8、latile test liquid and subsequent drying of the test pieces 4 10 Test report . 4 Annex A (informative) Reference liquids . 5 Annex B (informative) Standard temperatures of immersion 9 Bibliography . 10 ISO 6450:2005(E) iv ISO 2005 All rights reservedForeword ISO (the International Organization for S
9、tandardization) 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 ri
10、ght 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. Internationa
11、l 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
12、an 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
13、 6450 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 4, Products (other than hoses). INTERNATIONAL STANDARD ISO 6450:2005(E) ISO 2005 All rights reserved 1Rubber- or plastics-coated fabrics Determination of resistance to liquids 1 Scope This International
14、Standard specifies two methods (methods 1 and 2) of evaluating the resistance of fabrics coated with plastics or with vulcanized rubber to the action of liquids by measurement of selected properties of the materials before and after immersion in selected liquids. The difference between the two metho
15、ds is as follows: In method 1, excess liquid is removed from the test pieces, after immersion, by wiping. In method 2, the test pieces are immersed in a volatile liquid and excess liquid is subsequently removed by drying in an oven. 2 Normative references The following referenced documents are indis
16、pensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2231, Rubber- or plastics-coated fabrics Standard atmospheres for conditioning and testin
17、g ISO 2286-1, Rubber- or plastics-coated fabrics Determination of roll characteristics Part 1: Methods for determination of length, width and net mass 3 Principle This International Standard provides a procedure for exposing test pieces to the influence of liquids under defined conditions of tempera
18、ture and time. Selected properties are determined in accordance with the relevant test method standards. Test pieces are then immersed in selected liquid(s) and the properties determined again. The percentage change or the values before and after immersion are measures of the resistance of the mater
19、ial to the selected liquid(s). 4 Test liquids for methods 1 and 2 SAFETY PRECAUTIONS Appropriate safety precautions should be taken when preparing and handling test liquids, especially those known to be toxic, corrosive or flammable. Products giving off fumes should be handled only under an efficien
20、tly ventilated hood, corrosive products should not be allowed to come into contact with the skin or ordinary clothing, and flammable products should be kept away from any source of ignition. In addition, attention is drawn to the damage which can be caused by corrosive test liquids to test equipment
21、 (e.g. clamps or jaws). ISO 6450:2005(E) 2 ISO 2005 All rights reservedAs commercial liquids may not have an entirely constant composition, a standard immersion liquid consisting of a well-defined chemical compound or a mixture of such compounds should preferably be used. Suitable liquids are given
22、in Annex A. If a commercial liquid is used, the test report shall mention all the available information about its origin, composition, properties, e.g. viscosity, aniline point, etc., and batch number. NOTE For test purposes, it is usually desirable to use the liquid(s) with which the coated fabric
23、will come into contact during use. When determining the effect of solutions of chemicals, the concentration of the solution should be appropriate to the proposed application. 5 Test conditions for methods 1 and 2 5.1 Temperature Where appropriate, use an immersion temperature T approximating to that
24、 encountered during use. Maintain the immersion temperature at T 2 C. Preferred immersion temperatures are given in Annex B. 5.2 Immersion period The following immersion periods are recommended: 22 h 0,25 h; 46 h 0,25 h; 72 h 2 h; 168 h 2 h; multiples of 7 days 2 h NOTE When determining changes in p
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