1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1945 : 1996 The Eur
2、opean Standard EN 1945 : 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 quick stickThis British Standard, having been prepared under the direction of the Consumer Products and Services Sec
3、tor 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 92/43824 DC ISBN 0 580 26232 4 BS EN 1945 : 1996 Amendments issued since
4、 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 Adhesi
5、ves 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 Consor
6、tium 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 of Tran
7、sport 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 Associati
8、on 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 Kingdom Sof
9、twood 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 Pressu
10、re Sensitive Manufacturers AssociationBS EN 1945 : 1996 BSI 1996 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 1945 3ii BSI 1996 BS EN 1945 : 1996 National foreword This British Standard has been prepared by Technical Committee PKW/3 and is the
11、English language version of EN 1945 : 1996 Self adhesive tapes Measurement of quick stick 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 Comite Euro
12、pe 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 1945 : 1996 E EUROPEAN STANDARD EN 1945 NORM
13、E EUROPE ENNE EUROPA ISCHE NORM February 1996 ICS 83.180 Descriptors: Adhesive tapes, adhesion tests, measurement, adhesive strength English version Self adhesive tapes Measurement of quick stick Rubans auto-adhe sifs Mesure du pouvoir dagrippage Klebeba nder Messung der Anfabklebkraft This European
14、 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 concerning
15、 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 langu
16、age 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 and U
17、nited Kingdom.Page 2 EN 1945 : 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 ident
18、ical 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 International Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Fin
19、land, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 3 1 Scope 3 2 Normative reference 3 3 Definition 3 4 Principle 3 5 Materials 3 6 Apparatus 3 7 Test sample and test pieces 4 8
20、Procedure 4 9 Expression of results 5 10 Test report 5Page 3 EN 1945 : 1996 BSI 1996 1 Scope This standard specifies a method to measure the ability of adhesive tape to adhere to a surface, with the application of a very light pressure. 2 Normative reference This European Standard incorporates by un
21、dated reference, provisions from another publication. This normative reference is cited at the appropriate place in the text and the publication is listed hereafter. For the undated reference the latest edition of the publication referred to applies. prEN 1939 Self adhesive tapes Measurement of peel
22、 adhesion from stainless steel or from its own backing 3 Definition For the purposes of this standard, the following definition applies: quick stick The property of an adhesive tape that causes an instant bond, with measurable separation force by the touching of the adhesive and a substrate with lit
23、tle or no externally applied pressure. The surface of the adhesive has an influence on this property. 4 Principle A length of adhesive tape is applied to a standard metal plate under standard conditions. The quick stick is measured by the force required to peel the adhesive tape continuously from th
24、e plate at an approximate angle of 90. 5 Materials 5.1 Diacetone alcohol. 5.2 Lint free cotton wool, or tissue. 5.3 One of the following solvents : methanol; methyl ethyl ketone; acetone; toluene. Solvents shall be of general purpose chemical grade. 6 Apparatus 6.1 Tensile testing machine with the f
25、ollowing characteristics : the force shall be indicated with a maximum error of 2 %; the speed of the moveable clamp shall be 300 mm/min 30 min/min; the scale shall be such that the readings obtained are between 15 % and 85 % of the complete scale; the clamps shall be serrated to prevent slipping or
26、 tearing of the adhesive tape; if a pendulum machine is used, ensure that the pendulum can swing freely. 6.2 Stainless steel plates The plates shall be the same as those used for the measurement of peel adhesion of adhesive tape from stainless steel. (See prEN 1939.) 6.3 Horizontal traverse device (
27、see fig. 1) A simple mechanical device that will ensure that the plate moves horizontally at the rate of traverse of the tensile testing machine throughout the period of peeling the adhesive tape at an angle of approximately 90. This device may consist of a metal section containing two grooves in wh
28、ich the plate can move freely in a horizontal plane. This section shall be fixed rigidly to one clamp, the plate being positioned horizontally and centred with respect to the vertical passing through the two clamps. A convenient way to make the plate move horizontally at the same speed as the moveab
29、le clamp is to connect it to a fixture by means of an inextensible wire passing round a pulley attached to the device. The device is designed to produce a theoretical peel angle of 90. In practice the angle of peel varies slightly around this figure due to irregularities in the structure of the adhe
30、sive mass. The extent of the variation will also depend on the degree of damping of the tensile testing machine. 6.4 Roller for the application of light pressure This roller will be about 32 mm in diameter and 75 mm long, with a total mass of 25 g 0,5 g.Page 4 EN 1945 : 1996 BSI 1996 Figure 1. Horiz
31、ontal traverse device 7 Test sample and test pieces Use rolls of adhesive tape at least 25 mm wide. Condition the sample roll for 24 hours at 23 C 2C and 50 % 5 % relative humidity. Discard the 3 outer turns of adhesive tape from the roll. Take from each roll 5 test pieces. Each test piece shall be
32、300 to 375 mm long. For widths greater than 25 mm, a test piece 25 mm wide shall be cut longitudinally from the adhesive tape. The cutting must be carried out by means of a razor-blade or any other suitable instrument. It must always be effected so that the adhesive surface never contacts other surf
33、aces before application to the test plate. Cutting shall never be carried out with the adhesive tape already applied to the test plate, so as not to mark the plate for subsequent tests. 8 Procedure 8.1 Standard test conditions The test shall be carried out at 23 C 2 C and 50 % 5 % relative humidity.
34、 8.2 Preparation of plate Wipe the test surface of the plate with a fresh piece of cotton wool or tissue saturated with diacetone alcohol. Dry the plate with fresh cotton wool, then wipe the test surface with a fresh piece of cotton wool saturated with one of the solvents given in 5.3. Dry the plate
35、 with fresh cotton wool, then repeat for a total of three cleaning operations with this solvent. Maintain the plate at a temperature of 23 C 2C for at least 5 min before proceeding. In order to obtain consistent results, a new plate must be cleaned at least ten times before use. 8.3 Application of t
36、he adhesive tape to the plate Place the plate on an inclined plane having a slope of 1/5 (making an angle of 11199 with the horizontal). Remove the test piece radially from the roll at an approximate speed of 300 mm/s, then apply it immediately to the plate in its sloping position. Adhere the end of
37、 the test piece to the middle of the upper edge of the stainless steel plate. Then place the roller on the back of the adhesive tape and hold the other end of the adhesive tape in a vertical position so that the roller rests in the loop so formed. Allow the roller to travel down the sloping plane, t
38、hus applying the adhesive tape to the plate, at an approximate speed of 25 mm/s. Take care to ensure that the edges of the adhesive tape are parallel to those of the plate.Page 5 EN 1945 : 1996 BSI 1996 8.4 Peeling of the adhesive tape Place the plate immediately in its horizontal support, which sha
39、ll have been previously fixed in the clamp of the tensile testing machine in the standard test conditions. Fold back about 25 mm of free end of the adhesive tape, adhesive to adhesive, and place it in the other clamp of the tensile testing machine. Attach the plate to the fixture with the connecting
40、 wire. Set the speed at 300 mm/min 30 mm/min, and start the tensile testing machine. The measurement shall be made within 1 min of applying the adhesive tape to the plate. As the device has been constructed so that the plate moves at the same speed as the clamp, it follows that, if assembled correct
41、ly, an angle of peel of about 90 will be maintained throughout the entire test, subject to the comments made in 6.3. Take readings when the line of separation of adhesive tape and plate passes each reference mark on the plate. 9 Expression of results For each test piece, arrange the 5 readings in as
42、cending order and take the central value (median). Similarly, arrange these 5 medians in ascending order and take their median. Express the results in newtons per centimetre width of adhesive tape. Since the measurements made using different types of tensile testing machines (for example, electronic
43、 or pendulum) are not directly comparable, the type of tensile testing machine used will be indicated in the report. 10 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 typ
44、e of tensile testing machine used; d) the date of the test; e) the results obtained; f) any operation not specified in this European Standard which may influence the results.BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
45、 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the
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