1、June 2008DEUTSCHE NORM English price group 6No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 83.180!$ONB“1444331www.din
2、.deDDIN EN 1942Self adhesive tapes Measurement of ThicknessEnglish version of DIN EN 1942:2008-06Klebebnder Messung der DickeEnglische Fassung DIN EN 1942:2008-06SupersedesDIN EN 1942:2003-08www.beuth.deDocument comprises 9 pagesDIN EN 1942:2008-06 2 National foreword This standard has been prepared
3、 by Technical Committee CEN/TC 253 “Self adhesive tapes” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Verpackungswesen (Packaging Standards Committee), Technical Committee NA 115-03-02 AA Klebestreifen und Klebebnder. This document sup
4、ersedes DIN EN 1942:2003-08. Amendments This standard differs from DIN EN 1942:2003-08 as follows: a) In clause 6 “Apparatus” the size of the foot is now 5 mm to 16 mm (formerly 8 mm to 16 mm). b) In clause 6 “Apparatus” the pressure exerted by the foot is now in the range of 40 kPa to 60 kPa (forme
5、rly 50 kPa to 60 kPa). c) The standard has been editorially revised. Previous editions DIN EN 1942: 1996-04, 2003-08 EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1942March 2008ICS 83.180 Supersedes EN 1942:2003 English VersionSelf adhesive tapes - Measurement of ThicknessRubans auto-adhsifs - M
6、esure de lpaisseur Klebebnder - Messung der DickeThis European Standard was approved by CEN on 24 February 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alte
7、ration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by trans
8、lationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, G
9、reece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement
10、 Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1942:2008: EEN 1942:2008 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Terms and definitions .5 3 Significance and use .5 4
11、 Principle5 5 Required materials.5 6 Apparatus .5 7 Test sample and test pieces .5 8 Procedure .6 9 Expression of results 6 10 Test report 6 Standard .7 DIN EN 1942:2008-06Annex A (informative) Identification of significant technical changes in revised European EN 1942:2008 (E) 3 Foreword This docum
12、ent (EN 1942:2008) has been prepared by Technical Committee CEN/TC 253 “Self adhesive tapes”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2
13、008, and conflicting national standards shall be withdrawn at the latest by September 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent ri
14、ghts. This document supersedes EN 1942:2003. Annex A provides details of significant technical changes between this European Standard and the previous edition. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement th
15、is European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the
16、 United Kingdom. DIN EN 1942:2008-06EN 1942:2008 (E) 4 Introduction This European Standard has been revised in conjunction with AFERA (Association of European Self Adhesive Tapes Manufacturers) in Europe and PSTC (Pressure Sensitive Tape Council) in the USA, with the purpose to produce a standard wh
17、ich will be accepted in due course by ISO. DIN EN 1942:2008-06EN 1942:2008 (E) 5 1 Scope This European Standard specifies a method on how to measure the total thickness of both the backing and adhesive layer comprising an adhesive tape. 2 Terms and definitions For the purposes of this document, the
18、following term and definition applies. 2.1 thickness of adhesive tape vertical distance between the two surfaces of an adhesive tape 3 Significance and use The thickness is an important property of an adhesive tape and is important for certain end uses. It is useful for quality control and acceptanc
19、e testing for conformance to specification. 4 Principle The adhesive tape is placed between the pressure foot and platform of a micrometer within controlled pressure limits. 5 Required materials Appropriate cleaning solvent for the pressure foot. 6 Apparatus A micrometer (calliper gauge) with two pl
20、ane surfaces, the smaller of which is circular and 5 mm to 16 mm in diameter. The faces shall be parallel to within 5 m and constrained to move apart along an axis perpendicular to them. When the test piece is placed between the faces the pressure exerted by the foot shall be in the range of 40 kPa
21、to 60 kPa. The micrometer used shall be sensitive to at least 2 m and have a graduation adapted to this sensitivity. 7 Test sample and test pieces 7.1 Unless otherwise specified, condition the roll in an atmosphere maintained at (23 1) C and (50 5) % relative humidity (RH). 7.2 The test piece width
22、shall be greater than the diameter of the foot of the micrometer and at least 50 mm long. The test pieces shall be free from surface irregularities or creases other than the normal surface features of the type of adhesive tape under test. NOTE Nevertheless, this method can be applied to adhesive tap
23、es of width less than the diameter of the circular foot on the micrometer. However, in this case, the value obtained can only be approximate. DIN EN 1942:2008-06EN 1942:2008 (E) 6 7.3 Unwind and discard at least 3 but not more than 6 outer turns of adhesive tape from the roll before taking test piec
24、es. 7.4 Unless otherwise specified, remove one test piece per sample roll. 8 Procedure 8.1 Zero the instrument in accordance with the manufacturers instructions. Clean the pressure foot using a suitable solvent before every measurement. 8.2 Place the test piece under the foot of the micrometer, adhe
25、sive side up, and lower the pressure foot gently upon the surface of the tape. Record the reading of the dial to the nearest 2 m 1 s after lowering the foot. Make two further measurements for each test piece using a different area of the test piece each time. Average the measurements to obtain the t
26、hickness value for that test piece. 8.3 To measure double coated tapes with liner, measure the thickness of the test piece with liner in place as in 8.2. Mark the liner where the measurements were made. Remove the liner and repeat the measurements on the liner only as in 8.2 in the marked positions.
27、 Average both sets of measurements, subtract the average of the liner from the average of the total (tape plus liner) and record the difference as the thickness of the tape. 9 Expression of results Take as the thickness the arithmetic mean (average) of the measurements made, as described above. Expr
28、ess this in m. 10 Test report The test report shall include the following information: a) reference to this European Standard (EN 1942:2008); b) all information necessary to identify the test sample; c) results obtained; d) width of test piece if narrower than the micrometer foot; e) any operation n
29、ot specified in this European Standard which can influence the results; f) date and place of the test; g) name and signature of the person conducting the test. DIN EN 1942:2008-06EN 1942:2008 (E) 7 Annex A (informative) Identification of significant technical changes in revised European Standard Sig
30、nificant technical differences between this European Standard and the previous edition are as follows: a) In the definition of equipment, size of the foot on the instrument is to change from “8 mm to 16 mm“ to “5 mm to 16 mm“ in 6; b) In the definition of equipment, the allowable pressure to be exerted by the foot of the instrument is to change from “50 kPa to 60 kPa“ to “40 kPa to 60 kPa“ in 6. DIN EN 1942:2008-06
