ISO 1420-2016 Rubber- or plastics-coated fabrics - Determination of resistance to penetration by water《橡胶或塑料涂覆织物 抗渗水性测定》.pdf
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1、 ISO 2016 Rubber- or plastics-coated fabrics Determination of resistance to penetration by water Supports textiles revtus de caoutchouc ou de plastique Dtermination de la rsistance la pntration de leau INTERNATIONAL STANDARD ISO 1420 Fourth edition 2016-07-01 Reference number ISO 1420:2016(E) ISO 14
2、20:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying
3、, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01
4、 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO 1420:2016(E)Foreword iv Introduction v 1 Scope . 1 2 Normative references 1 3 Principle 1 4 Apparatus . 1 4.1 Method A 1 4.2 Method B 3 5 Test pieces . 4 5.1 Taking test pieces 4 5.2 Number 4 5.3 Shape and dimensions 4 5.3.1 Square piece . 4
5、5.3.2 Circular piece 4 6 Atmosphere for conditioning 4 7 Time-interval between manufacture and testing. 4 8 Procedure. 5 8.1 Method A (for hydrostatic pressure less than 500 kPa) 5 8.2 Method B (for hydrostatic pressure less than 100 kPa) 5 9 Expression of results 6 10 Test report . 6 ISO 2016 All r
6、ights reserved iii Contents Page ISO 1420:2016(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 technical committees. Each
7、 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 Internationa
8、l Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different
9、types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives 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 he
10、ld responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received. www.iso.org/patents Any trade name used in this document is information giv
11、en for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT), see the follow
12、ing URL: Foreword - Supplementary information The committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee SC 4, Products (other than hoses). This fourth edition cancels and replaces the third edition (ISO 1420:2001), which has been technically revised.iv ISO 20
13、16 All rights reserved ISO 1420:2016(E) Introduction The resistance to penetration by water is often used as a measure of the water-proofing of rubber- or plastics-coated fabrics when a product made from the coated fabric is exposed to various service conditions in the field. There are some environm
14、ental factors that affect the resistance to water penetration such as temperature, pressure or chemicals in water, however, the methods in this International Standard only measure the property at a low to high hydrostatic pressure level at ambient temperature. ISO 2016 All rights reserved v Rubber-
15、or plastics-coated fabrics Determination of resistance to penetration by water WARNING Persons using this International Standard should be familiar with normal laboratory practice. This International Standard does not purport to address all of the safety problems, if any, associated with its use. It
16、 is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. 1 Scope This International Standard specifies two methods for the determination of the resistance of rubber- or plastics-coated fabrics to water p
17、enetration (hydrostatic resistance) when subjected to a specific hydrostatic pressure over a fixed period of time. Method A specifies the procedure for a low and high hydrostatic pressure and Method B for a low hydrostatic pressure. 2 Normative references The following documents, in whole or in part
18、, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2231:1989, Rubber- or plastics-coated fabrics S
19、tandard atmospheres for conditioning and testing 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 A test piece of coated fabric is subjected to an increasing pressure of water on one face,
20、 under standard conditions, until a predetermined pressure specified in the coated-fabric specification is obtained. The required pressure is maintained for a specified time or until penetration occurs, whichever is the sooner. 4 Apparatus 4.1 Method A 4.1.1 The apparatus shall consist of a test pie
21、ce supporting plate fitted with a clamp tightening ring to fasten the test piece over the mouth by use of an upper screw handle. The lower part of the vessel shall have a pressure gauge and a nozzle connected with a cylinder that has a mechanical system delivering high pressure water. The other side
22、 of the cylinder shall be connected with a water inlet pipe through a three-way valve. The whole system shall have a capability of holding a hydrostatic pressure of 500 kPa at an ambient temperature for a certain period of time. Illustrative examples of the parts of apparatus are given in Figures 1,
23、 2 and 3. INTERNATIONAL ST ANDARD ISO 1420:2016(E) ISO 2016 All rights reserved 1 ISO 1420:2016(E) Dimensions in millimetres Key 1 upper screw handle 7 three-way-valve 2 clamp tightening ring 8 cylinder 3 test piece supporting plate (see Figure 2) 9 piston handle 4 test piece 10 water inlet 5 seal r
24、ing 11 pressure gauge 6 vessel Figure 1 An example of the apparatus for Method A Dimensions in millimetres Figure 2 Test piece supporting plate2 ISO 2016 All rights reserved ISO 1420:2016(E) Key 1 water inlet 6 water exit 2 pressure gauge 7 vessel 3 three-way-valve 8 clamp tightening ring 4 cylinder
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