AS-2313.2.1-2005.pdf

AS 2313.2.12005 Australian Standard Methods of test for single sided and double sided pressure-sensitive adhesive tape Method 2.1: Physical properties Breaking strength AS 2313.2.12005 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 This Australian Standard was prepared by Committee PK-025, Packaging Code. It was approved on behalf of the Council of Standards Australia on 26 September 2005. This Standard was published on 28 October 2005. The following are represented on Committee PK-025: Australian Paints Manufacturers Federation Carmakers Institute of Australia Department of Defence Printing Industries Association of Australia Department of Defence Printing Industries Association of Australia Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. 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Contact us via email at mailstandards.org.au, or write to the Chief Executive, Standards Australia, GPO Box 476, Sydney, NSW 2001. This Standard was issued in draft form for comment as DR 05287. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 AS 2313.2.12005 Australian Standard Methods of test for single sided and double sided pressure-sensitive adhesive tape Method 2.1: Physical properties Breaking strength Originated as AS Z24.5.11968. Previous edition AS/NZS 1635.5.1:1995. Revised and redesignated as AS 2313.2.12005. COPYRIGHT © Standards Australia All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher. Published by Standards Australia GPO Box 476, Sydney, NSW 2001, Australia ISBN 0 7337 6954 3 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 AS 2313.2.12005 2 PREFACE This Standard was prepared by the Standards Australia Committee PK-025, Packaging Code to supersede, AS/NZS 1635.5.1:1995, Methods of test for pressure-sensitive adhesive tape, Part 5.1: Breaking strength. The objective of this edition is to revise the apparatus and materials used in the procedure of the Standard. CONTENTS Page 1 SCOPE3 2 REFERENCED DOCUMENTS3 3 DEFINITIONS3 4 APPARATUS AND MATERIALS.3 5 TEST CONDITIONS3 6 PREPARATION OF TEST SPECIMENS.4 7 PROCEDURE.4 8 CALCULATION 4 9 REPORT.5 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 3 AS 2313.2.12005 www.standards.com.au Standards Australia STANDARDS AUSTRALIA Australian Standard Methods of test for single sided and double sided pressure-sensitive adhesive tape Method 2.1: Physical propertiesBreaking strength 1 SCOPE This Standard specifies the method for determining the breaking strength of pressure- sensitive adhesive tape. 2 REFERENCED DOCUMENTS The following documents are referred to in this Standard: AS 2193 Calibration and classification of force measuring systems 2313 Methods of test for single sided and double sided pressure-sensitive adhesive tape 2313.2.2 Method 2.2: Physical propertiesElongation 3 DEFINITIONS For the purpose of this document, the following terms and definitions apply. 3.1 Elastic elongation Tapes that exceed 200% elongation are considered to be elastic. 3.2 Non-elastic elongation Tapes with elongation less than 200% are considered to be non-elastic. 4 APPARATUS AND MATERIALS The following apparatus is required: (a) Tensile testing machine The tensile testing machine shall have a rate of travel 300 ±10 mm/min of the moving jaw or carriage. The initial clear spacing between the machine jaws shall be 125 mm. The calibration of the tensile testing machine shall comply with Grade B of AS 2193. (b) Specimen cutter Consisting of a 25 mm thick, 200 mm long and 25 mm wide aluminium bar stock. The edges for about 125 mm from one end shall be rounded slightly to form a handle. The width of the bar for 75 mm from the opposite end shall be narrowed to exactly 25 mm minus the thickness of a single razor blade (one of two razor blades used as cutting edges). The razor blades shall be held in position using side plates. The end of the cutter shall be cut away at a 45° angle to expose the cutting edge at one end of the blades. The edges shall be separated by a distance of 25 ±0.25 mm. 5 TEST CONDITIONS Testing shall be conducted at 23 ±5°C and 50 ±5% relative humidity. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 AS 2313.2.12005 4 Standards Australia www.standards.com.au 6 PREPARATION OF TEST SPECIMENS The roll, from which the test specimens are to be taken, shall be conditioned at 23 ±5°C and 50 ±5% relative humidity for 24 ±1 h prior to testing. The test specimen shall be at least 250 mm long for non-elastic backings, and at least 150 mm long for other types of backings. 7 PROCEDURE The procedure shall be as follows: (a) Take a test specimen from the freely rotating conditioned roll, the minimum width of which shall be 6 mm, by manually unrolling the roll radially and after discarding the outer three laps of the roll. NOTE: The speed of removal of the test specimen from the roll is operator-dependent. Usually, a speed of approximately 300 mm/s is attained. (b) Where the width of a roll is 25 mm wide or less, use the test specimen direct. (c) Where a roll is greater than 25 mm wide or wider than the width of the jaws of the tension testing machine, cut the roll using the specimen cutter, to a width of 25 mm. (d) Measure and record the width of the specimen to the nearest 0.5 mm. (e) Clamp the specimen squarely in the jaws of the tension testing machine. (i) Ensure that the spacing between the jaws is 125 ±2 mm for tapes with non- elastic elongation and 75 ±2 mm for tapes with elastic elongation 200% and (see also AS 2313.2.2). (ii) Separate the jaws at a uniform speed of 300 ±10 mm/min until the specimen breaks. Record the value in newtons. NOTE: Reject those readings obtained where the specimen breaks at, or in, the jaws. (f) Repeat Steps (a) to (e) using another two test specimens taken from the same roll. 8 CALCULATION The average breaking strength for the specimens shall be calculated from the following equation: Rm = W L25 3 m × . . . (1) where Rm = average breaking strength, in newtons per 25 millimetre m L = sum of jaw separation at break, in millimetres W = measured width of specimen Where the results fall below the value specified in the referring Standard, test two further rolls to determine whether the specimens meet the requirements. NOTE: The retest requirements of the method have been introduced to allow for the possibility of an individual roll having been damaged, which could lead to abnormally low figures for the breaking strength. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 5 AS 2313.2.12005 www.standards.com.au Standards Australia 9 REPORT The following information shall be reported: (a) The average breaking strength of the three specimens taken from the same roll, in newtons per 25 millimetre (N/25 mm) width to the nearest 0.1 N/25 mm. (b) Reference to this Australian Standard, i.e. AS 2313.2.1. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 AS 2313.2.12005 6 NOTES Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 7 AS 2313.2.12005 NOTES Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 AS 2313.2.12005 8 NOTES Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 Standards Australia Standards Australia is an independent company, limited by guarantee, which prepares and publishes most of the voluntary technical and commercial standards used in Australia. These standards are developed through an open process of consultation and consensus, in which all interested parties are invited to participate. Through a Memorandum of Understanding with the Commonwealth government, Standards Australia is recognized as Australias peak national standards body. For further information on Standards Australia visit us at www.standards.org.au Australian Standards Australian Standards are prepared by committees of experts from industry, governments, consumers and other relevant sectors. The requirements or recommendations contained in published Standards are a consensus of the views of representative interests and also take account of comments received from other sources. They reflect the latest scientific and industry experience. Australian Standards are kept under continuous review after publication and are updated regularly to take account of changing technology. International Involvement Standards Australia is responsible for ensuring that the Australian viewpoint is considered in the formulation of international Standards and that the latest international experience is incorporated in national Standards. This role is vital in assisting local industry to compete in international markets. Standards Australia represents Australia at both ISO (The International Organization for Standardization) and the International Electrotechnical Commission (IEC). Electronic Standards All Australian Standards are available in electronic editions, either downloaded individually from our web site, or via On-Line and DVD subscription services. For more information phone 1300 65 46 46 or visit Standards Web Shop at www.standards.com.au Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 GPO Box 476 Sydney NSW 2001 Administration Phone (02) 8206 6000 Fax (02) 8206 6001 Email mailstandards.com.au Customer Service Phone 1300 65 46 46 Fax 1300 65 49 49 Email salesstandards.com.au Internet www.standards.org.au ISBN 0 7337 6954 3 Printed in Australia Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 This page has been left intentionally blank. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 ?This document has expired. 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