1、 ISO 2015 Resilient floor coverings Determination of seam strength Revtements de sol rsilients Dtermination de la rsistance de la soudure INTERNATIONAL STANDARD ISO 16906 First edition 2015-05-15 Reference number ISO 16906:2015(E) ISO 16906:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED
2、DOCUMENT ISO 2015, 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, or posting on the internet or an intranet, without prior wri
3、tten 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 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO 1690
4、6:2015(E)Foreword iv 1 Scope . 1 2 Terms and definitions . 1 3 Principle 1 4 Apparatus . 1 5 Sampling and preparation of test pieces . 2 5.1 Sampling . 2 5.2 Preparation of test pieces 2 6 Conditioning 2 7 Procedure. 2 8 Calculation an expression of results 3 9 Test report . 3 ISO 2015 All rights re
5、served iii Contents Page ISO 16906:2015(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 member
6、 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 International Elect
7、rotechnical 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 types o
8、f ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see 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 hel
9、d 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 (see www.iso.org/patents). Any trade name used in this document is informatio
10、n given 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 fo
11、llowing URL: Foreword - Supplementary information The committee responsible for this document is ISO/TC 219, Floor coverings.iv ISO 2015 All rights reserved Resilient floor coverings Determination of seam strength 1 Scope This International Standard specifies a method for determining the strength of
12、 the seams of resilient floor coverings when welded in accordance with the manufacturers instructions. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 seam strength maximum tensile force recorded, for a defined width, when a floor covering is
13、 tested under a constant rate of extension 2.2 constant-rate-of-extension (CRE) testing machine tensile testing machine provided with one clamp which is stationary and another clamp which moves with a constant speed throughout the test, the entire testing system being virtually free from deflection
14、3 Principle An increasing tensile force is applied until the seam breaks (see Figure 1; the arrows indicate the direction of the applied tensile forces). Figure 1 Principle of test 4 Apparatus A tensile testing machine, which allows a speed of separation of (100 5) mm/min, and a force recording devi
15、ce shall be used. INTERNATIONAL ST ANDARD ISO 16906:2015(E) ISO 2015 All rights reserved 1 ISO 16906:2015(E) 5 Sampling and preparation of test pieces 5.1 Sampling Take a representative sample from the available material. 5.2 Preparation of test pieces Take two pieces of a sheet floor covering with
16、minimum length of 1 m and minimum width of 300 mm and weld them together in accordance with the manufacturers instructions. The weld shall be done on the long side of the sample. For tiles, weld two tiles together in accordance with the manufacturers instructions. Cut five test pieces with minimum l
17、ength of 150 mm and width of (50 0,5) mm at equal distances across the sample, the distance between the outer edge of the sample and the nearest edge of the test piece being at least 100 mm, with the seam centrally located across each test piece (see Figure 2). Dimensions in millimetres 50 0,5 Key 1
18、 seam Figure 2 Test piece layout 6 Conditioning Condition the test pieces at a temperature of (23 2) C and relative humidity of (50 5) % for a minimum of 24 h. Maintain these conditions when carrying out the test. 7 Procedure Place the test piece in the jaws (which are approximately 100 mm apart) of
19、 the tensile testing machine so that the seam is at an equal distance from the jaws and tension is applied evenly over the width. Set the machine and its recording device in operation such that the speed of separation is (100 5) mm/min. Record the force at break or the maximum force exerted. Repeat
20、the test on the remaining test pieces to obtain five values.2 ISO 2015 All rights reserved ISO 16906:2015(E) 8 Calculation an expression of results Calculate the mean value of the five tests and express the result to the nearest 10 N in N/mm. Also record the minimum of the individual values. 9 Test
21、report The test report shall contain the following information: a) a reference to this International Standard, i.e. ISO 16906; b) a complete identification of the product tested, including type, source, colour, and manufacturers reference numbers; c) previous history of the sample; d) a description
22、of the welding process; e) the mean value of seam strength; f) the minimum value of seam strength; g) the type of failure if not in the seam, e.g. failure due to breaking of the test piece; h) any deviation from this International Standard which could have affected the results. ISO 2015 All rights reserved 3 ISO 16906:2015(E) ISO 2015 All rights reserved ICS 97.150 Price based on 3 pages
