1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1944 : 1996 The Eur
2、opean Standard EN 1944 : 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 unwind adhesion at low speedThis British Standard, having been prepared under the direction of the Consumer Products
3、 and Services 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 92/42640 DC ISBN 0 580 26231 6 BS EN 1944 : 1996 Amendm
4、ents issued 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 represente
5、d: British 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 Brit
6、ish Retail 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 D
7、epartment of 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 N
8、ational Association 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 U
9、nited Kingdom 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 A
10、ssociation Pressure Sensitive Manufacturers AssociationBS EN 1944 : 1996 BSI 1996 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 1944 3ii BSI 1996 BS EN 1944 : 1996 National foreword This British Standard has been prepared by Technical Committee
11、PKW/3 and is the English language version of EN 1944 : 1996 Self adhesive tapes Measurement of unwind adhesion at low speed published by the European Committee for Standardization (CEN). Compliance with a British Standard does not of itself confer immunity from legal obligations.CEN European Committ
12、ee for Standardization 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 1944 : 199
13、6 E EUROPEAN STANDARD EN 1944 NORME EUROPE ENNE EUROPA ISCHE NORM February 1996 ICS 83.180 Descriptors: Adhesive tapes, unwinding, tests, tensile tests English version Self adhesive tapes Measurement of unwind adhesion at low speed Rubans auto-adhe sifs Mesure de la force de de roulement a faible vi
14、tesse Klebeba nder Messung der Abrollkraft bei niedriger Geschwindigkeit This European 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 stand
15、ard without any alteration. Up-to-date lists and bibliographical references concerning 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 la
16、nguage made by translation under the responsibility of a CEN member into its own 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, Irela
17、nd, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 1944 : 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 Standa
18、rd shall be given the status of a national standard, either by publication of an 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 International Regulations, the following c
19、ountries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, 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
20、4 Apparatus 3 5 Test pieces 3 6 Procedure 3 7 Expression of results 3 8 Test report 3Page 3 EN 1944 : 1996 BSI 1996 Figure 1 1 Scope The standard specifies a method to measure the force required to unwind a roll of adhesive tape at low speed under standard test conditions. 2 Definition For the purpo
21、ses of this standard, the following definition applies: unwind adhesion The force required to unroll the tape under prescribed conditions. 3 Principle The roll of adhesive tape is mounted on a mandrel so that it can turn without appreciable friction. The mandrel is fixed in one clamp of the tensile
22、testing machine and the free end of the adhesive tape is fixed in the other clamp and the unrolling force is measured. 4 Apparatus 4.1 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
23、/min 30 mm/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 tearing of the adhesive tape; if a pendulum machine is used, ensure that the pendulum can swing freely. 4.2 Mandrel and mounting: th
24、e assembly shall conform generally to that shown in figure 1. The mandrel shall be capable of turning freely on its axis without appreciable friction. 5 Test pieces Select for test a roll of adhesive tape at least 10 metres long and preferably 25 mm wide. Condition the sample roll for 24 h 23 C 2 C
25、and 50 % 5 % relative humidity. Discard at least 3 outer turns of adhesive tape from the roll. 6 Procedure 6.1 Standard test conditions: the test shall be carried out at 23 C 2 C and 50 % 5 % relative humidity. 6.2 Mount the roll of adhesive tape on the mandrel and fix the assembly in one clamp of t
26、he tensile testing machine. Reset the machine to zero. Attach the free end of the adhesive tape in the other clamp. Set the speed at 300 mm/min 30 mm/min and start the tensile test machine. After the driven clamp has moved 25 mm, record the mean and the minimum and maximum values recorded during the
27、 next 1 min. If necessary, continue the test until at least one complete turn of tape has been unwound. Carry out 5 tests at approximately equal intervals (about 2 m). 7 Expression of results Express the results in newtons per centimetre width of adhesive tape. Record the individual minimum and maxi
28、mum readings and the arithmetic mean of the five values. Since the measurements made using different types of tensile testing machines (for example, electronic or pendulum) may not be directly comparable, the type of tensile testing machine used shall be indicated in the report. 8 Test report The te
29、st 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 results obtained; f) any operation not specified in this European Standa
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