1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1940 : 1996 The Eur
2、opean Standard EN 1940 : 1996 has the status of a British Standard ICS 83.180 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Self adhesive tapes Measurement of breaking strengthThis British Standard, having been prepared under the direction of the Consumer Products and Servic
3、es Sector Board, was published under the authority of the Standards Board and comes into effect on 15 October 1996 BSI 1996 The following BSI references relate to the work on this standard: Committee reference PKW/3 Draft for comment 92/42617 DC ISBN 0 580 26227 8 BS EN 1940 : 1996 Amendments issued
4、 since publication Amd. No. Date Text affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PKW/3, Distribution packaging, transport, packaging and unit loads, upon which the following bodies were represented: British
5、Adhesives and Sealants Association British Apparel and Textile Confederation British Carton Association British Coatings Federation Ltd. British Fibreboard Packaging Association British Glass Manufacturers Confederation British Industrial Truck Association British Plastics Federation British Retail
6、Consortium British Rubber Manufacturers Association Ltd. British Tensional Strapping Association Ltd. British Timber Merchants Association British Wood Preserving and Damp-proofing Association Chamber of Shipping Chemical Industries Association China Clay Association Cranfield Logistics Department o
7、f Transport Engineering Equipment and Materials Users Association Federation of the Electronics Industry Flexible IBC Association Food and Drink Federation Independent Pallet Repair Committee Institute of Grocery Distribution Metal Packaging Manufacturers Association Ministry of Defence National Ass
8、ociation of Pallet Distributors Power Fastenings Association Pira International Road Haulage Association Ltd. Society of Motor Manufacturers and Traders Ltd. Storage Equipment Manufacturers Association Timber Packaging and Pallet Confederation Timber Research and Development Association United Kingd
9、om Softwood Sawmillers Association The following bodies were also represented in the drafting of the standard, through subcommittees and panels: Adhesive Tape Manufacturers Association British Footwear Manufacturers Federation British Steel Industry (Wire Section) Packaging Distributors Association
10、Pressure Sensitive Manufacturers AssociationBS EN 1940 : 1996 BSI 1996 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 1940 3ii BSI 1996 BS EN 1940 : 1996 National foreword This British Standard has been prepared by Technical Committee PKW/3 and i
11、s the English language version of EN 1940 : 1996 Self adhesive tapes Measurement of breaking strength published by the European Committee for Standardization (CEN). Compliance with a British Standard does not of itself confer immunity from legal obligations.CEN European Committee for Standardization
12、 Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 1940 : 1996 E EUROPEAN STANDARD
13、EN 1940 NORME EUROPE ENNE EUROPA ISCHE NORM February 1996 ICS 83.180 Descriptors: Adhesive tapes, tension tests, break strength English version Self adhesive tapes Measurement of breaking strength Rubans auto-adhe sifs Mesure de la re sistance a la rupture Klebeba nder Messung der Bruchkraft This Eu
14、ropean Standard was approved by CEN on 1996-01-14. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references conc
15、erning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own
16、 language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland
17、 and United Kingdom.Page 2 EN 1940 : 1996 BSI 1996 Foreword This European Standard has been prepared by Technical Committee CEN/TC 253, Self adhesive tapes, of which the Secretariat is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an
18、 identical text or by endorsement, at the latest by August 1996, and conflicting national standards shall be withdrawn at the latest by August 1996. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Fi
19、nland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Definition 3 3 Principle 3 4 Apparatus 3 5 Test sample and test pieces 3 6 Procedure 3 7 Expression of results 3
20、 8 Test report 3Page 3 EN 1940 : 1996 BSI 1996 1 Scope This standard specifies a method to measure the breaking strength of a self adhesive tape when it is subjected to a tensile force sufficient to cause it to break. The breaking strength of adhesive tape is of value as an indication of its uniform
21、ity and quality, and its ability to withstand stresses during application and use. The maximum width of adhesive tape tested by this method is 25 mm. For adhesive tapes of this width or less, the breaking strength measured corresponds to that as supplied commercially, with factory-cut edges. For adh
22、esive tapes wider than 25 mm, this test method provides for the adhesive tape to be cut down to 25 mm with a well-sharpened instrument. In such cases, because of the better cutting of the edges, the results can be higher than would be found on commercial tape. 2 Definition For the purposes of this s
23、tandard, the following definition applies: breaking strength The ability to resist breaking when subject to load under prescribed conditions. 3 Principle The method consists of holding the adhesive tape vertically by the two clamps of a tensile testing machine. A tensile test is carried out until th
24、e adhesive tape breaks. 4 Apparatus Tensile testing machine, with the following characteristics: the force shall be indicated with a maximum error of 2 %; the speed of the moveable clamp shall be 300 mm/min 30 mm/min; the scale shall be such that the readings obtained are between 15 % and 85 % of th
25、e complete scale; the clamps shall be serrated to prevent slipping or tearing of the adhesive tape; if a pendulum machine is used, ensure that the pendulum can swing freely. 5 Test sample and test pieces Condition the sample roll for 24 hours at 23 C 2C and 50 % 5 % relative humidity. Discard the 3
26、outer turns of adhesive tape from the roll. Take from each roll 5 test pieces. Each test piece shall be 200 mm long and the same width as the adhesive tape. For widths greater than 25 mm, a test piece 25 mm wide shall be cut longitudinally from the adhesive tape. Use a sharp knife to obtain clean-cu
27、t edges. 6 Procedure 6.1 The test shall be carried out at the standard conditions of 23 C 2 C and 50 % 5 % relative humidity. 6.2 Remove the test pieces radially from the roll at an approximate speed of 300 mm/s, then condition for a further 2 h in the standard test conditions in order to remove all
28、 strain and distortion due to unrolling. 6.3 Set the clamps 100 mm apart. Clamp the test piece firmly so that the longitudinal axis is vertical and in line with the direction of the applied force. Check that the clamps move in the same plane and parallel to the applied force and that the speed of se
29、paration is 300 mm/min 30 mm/min. Reject all test pieces which break within 5 mm of the clamps and carry out sufficient further tests to obtain 5 test pieces which break in the correct manner. Note the final load at the break. 7 Expression of results Arrange the 5 readings in ascending order and tak
30、e the central value (median) as the breaking strength of the adhesive tape under test. Express the results in newtons per centimetre width of adhesive tape. Because the results obtained with different tensile testing machines (pendulum or electronic) may not be directly comparable, the type of machi
31、ne used shall be included in the test report. 8 Test report The test report shall include the following information: a) a reference to this European Standard; b) all information necessary to identify the test sample; c) the type of tensile testing machine used; d) the date of the test; e) the result
32、 obtained; f) any operation not specified in this European Standard which can influence the results.BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
33、 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is inco
34、rporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if any
35、one finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called P
36、LUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. In response to orders for international s
37、tandards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical He
38、lp to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with standards developments and receive
39、substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: 020 8996 7002. Fax: 020 8996 7001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the inter
40、national standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. Thi
41、s does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070.
