DIN EN ISO 13934-2-2014 Textiles - Tensile properties of fabrics - Part 2 Determination of maximum force using the grab method (ISO 13934-2 2014) German version EN ISO 13934-2 2014.pdf

1、June 2014Translation by DIN-Sprachendienst.English price group 11No part of this translation 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 59

2、.080.30!%2c0“2156413www.din.deDDIN EN ISO 13934-2Textiles Tensile properties of fabrics Part 2: Determination of maximum force using the grab method(ISO 13934-2:2014);English version EN ISO 13934-2:2014,English translation of DIN EN ISO 13934-2:2014-06Textilien Zugeigenschaften von textilen Flchenge

3、bilden Teil 2: Bestimmung der Hchstzugkraft mit dem Grab-Zugversuch (ISO 13934-2:2014);Englische Fassung EN ISO 13934-2:2014,Englische bersetzung von DIN EN ISO 13934-2:2014-06Textiles Proprits des toffes en traction Partie 2: Dtermination de la force maximale par la mthode darrachement (Grab test)(

4、ISO 13934-2:2014);Version anglaise EN ISO 13934-2:2014,Traduction anglaise de DIN EN ISO 13934-2:2014-06SupersedesDIN EN ISO 13934-2:1999-04www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 17 pages05.14 DIN EN ISO 13934-2:2014-06 2 A com

5、ma is used as the decimal marker. National foreword This document (EN ISO 13934-2:2014) has been prepared by Technical Committee ISO/TC 38 “Textiles” in collaboration with Technical Committee CEN/TC 248 “Textiles and textile products” (Secretariat: BSI, United Kingdom). The responsible German body i

6、nvolved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-05-21 AA Physikalisch-technologische Prfverfahren fr Textilien. The DIN Standards corresponding to the International Standards referred to in this document are as follo

7、ws: ISO 139 DIN EN ISO 139 ISO 1421 DIN EN ISO 1421 ISO 3696 DIN ISO 3696 ISO 7500-1 DIN EN ISO 7500-1 ISO 10012 DIN EN ISO 10012 ISO 13934-1 DIN EN ISO 13934-1 ISO 13935-1 DIN EN ISO 13935-1 ISO 13935-2 DIN EN ISO 13935-2 Amendments This standard differs from DIN EN ISO 13934-2:1999-04 as follows:

8、a) Clause 1 “Scope” has been extended to include fabrics which exhibit stretch characteristics imparted by the presence of an elastomeric fibre and mechanical or chemical treatment; b) Clause 2 “Normative references” has been updated. Previous editions DIN 53858: 1962-11, 1979-03 DIN EN ISO 13934-2:

9、 1999-04 DIN EN ISO 13934-2:2014-06 3 National Annex NA (informative) Bibliography DIN EN ISO 139, Textiles Standard atmospheres for conditioning and testing DIN EN ISO 1421, Rubber- or plastics-coated fabrics Determination of tensile strength and elongation at break DIN EN ISO 7500-1, Metallic mate

10、rials Verification of static uniaxial testing machines Part 1: Tension/ compression testing machines Verification and calibration of the force-measuring system DIN EN ISO 13934-1, Textiles Tensile properties of fabrics Part 1: Determination of maximum force and elongation at maximum force using the

11、strip method DIN EN ISO 13935-1, Textiles Seam tensile properties of fabrics and made-up textile articles Part 1: Determination of maximum force to seam rupture using the strip method DIN EN ISO 13935-2, Textiles Seam tensile properties of fabrics and made-up textile articles Part 2: Determination o

12、f maximum force to seam rupture using the grab method DIN ISO 3696, Water for analytical laboratory use Specification and test methods DIN EN ISO 10012, Measurement management systems Requirements for measurement processes and measuring equipment DIN EN ISO 13934-2:2014-06 4 This page is intentional

13、ly blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 13934-2February 2014 ICS 59.080.30 Supersedes EN ISO 13934-2:1999English Version Textiles - Tensile properties of fabrics - Part 2: Determination of maximum force using the grab method (ISO 13934-2:2014) Textiles - Proprits des toffes

14、 en traction - Partie 2: Dtermination de la force maximale par la mthode darrachement (Grab test) (ISO 13934-2:2014) Textilien - Zugeigenschaften von textilen Flchengebilden -Teil 2: Bestimmung der Hchstzugkraft mit dem Grab-Zugversuch (ISO 13934-2:2014) This European Standard was approved by CEN on

15、 30 December 2013. 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 such national standards m

16、ay be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a CEN member into its own language and notified

17、 to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Icelan

18、d, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management

19、 Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 13934-2:2014 EContents Page Foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references. 5 3 Terms and definitions 5 4 Princip

20、le 6 5 Sampling . 6 6 Apparatus 6 7 Atmosphere for conditioning and testing . 7 8 Preparation of test specimens 7 8.1 General 7 8.2 Dimensions . 8 8.3 Preparation of test specimens 8 8.4 Wet test specimens 8 9 Procedure 8 9.1 Gauge length 8 9.2 Rate of extension . 8 9.3 Mounting of test specimens 8

21、9.4 Operation 8 9.5 Tests on wet test specimens 9 10 Calculation and expression of results . 9 11 Test report . 9 Annex A (informative) Suggested procedure for sampling . 10 Annex B (informative) Locations of test specimens cut from a laboratory sample . 11 Annex C (informative) Arrangements of jaws

22、 for the grab test . 12 Bibliography 13 2DIN EN ISO 13934-2:2014-06EN ISO 13934-2:2014 (E)Foreword This document (EN ISO 13934-2:2014) has been prepared by Technical Committee ISO/TC 38 “Textiles” in collaboration with Technical Committee CEN/TC 248 “Textiles and textile products” the secretariat of

23、 which is held by BSI. 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 August 2014, and conflicting national standards shall be withdrawn at the latest by August 2014. Attention is drawn to the po

24、ssibility 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 rights. This document supersedes EN ISO 13934-2:1999. EN ISO 13934 consists of the following parts, under the general titl

25、e Textiles Tensile properties of fabrics: Part 1: Determination of maximum force and elongation at maximum force using the strip method Part 2: Determination of maximum force using the grab method According to the CEN-CENELEC Internal Regulations, the national standards organizations of the followin

26、g countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norw

27、ay, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 13934-2:2014 has been approved by CEN as EN ISO 13934-2:2014 without any modification. 3DIN EN ISO 13934-2:2014-06EN ISO 13934-2:2014 (E)IntroductionThis p

28、art of ISO 13934 has been prepared in the context of several test methods for determination of certain mechanical properties of textiles using mainly tensile testing machines, e.g. tensile properties, seam tensile properties, tear properties, and seam slippage. The procedure for these standards agre

29、es where appropriate. The results obtained by one of the methods should not be compared with those obtained by the other methods.4DIN EN ISO 13934-2:2014-06EN ISO 13934-2:2014 (E)1 ScopeThis part of ISO 13934 specifies a procedure for the determination of the maximum force of textile fabrics known a

30、s the grab test.NOTE ISO 13934-1 describes the method known as the strip test.The method is mainly applicable to woven textile fabrics including fabrics which exhibit stretch characteristics imparted by the presence of an elastomeric fibre and mechanical or chemical treatment. It can be applicable t

31、o fabrics produced by other techniques. It is not normally applicable to geotextiles, nonwovens, coated fabrics, textile-glass woven fabrics, and fabrics made from carbon fibres or polyolefin tape yarns.The method specifies the determination of the maximum force of test specimens in equilibrium with

32、 the standard atmosphere for testing and of test specimens in the wet state.The method is restricted to the use of constant-rate-of-extension (CRE) testing machines.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable f

33、or its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 139, Textiles Standard atmospheres for conditioning and testingISO 3696, Water for analytical laboratory use Specific

34、ation and test methodsISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring systemISO 10012-1, Quality assurance requirements for measuring equipment Part 1: Metrological confir

35、mation system for measuring equipment3 Terms and definitionsFor the purposes of this document, the terms and definitions in ISO 13934 and the following apply.3.1constant-rate-of-extension (CRE) testing machinetensile-testing machine provided with one clamp which is stationary and another clamp which

36、 moves with a constant speed throughout the test, the entire testing system being virtually free from deflectionSOURCE: ISO 13934-1:2013, 3.13.2grab testtensile test in which only the centre part of the test specimen is gripped in the jaws of the testing machineN1) National footnote: The original IS

37、O Standard makes reference to ISO 10012-1 instead of ISO 10012, Measurement management Requirements for measurement processes and measuring equipment. N1)5DIN EN ISO 13934-2:2014-06EN ISO 13934-2:2014 (E)3.3maximum forcemaximum force recorded when a test specimen is taken to rupture during a test un

38、der the specified conditionsSOURCE: ISO 13934-1:2013, 3.113.4gauge lengthdistance between the two effective clamping points of a testing deviceNote 1 to entry: The effective clamping points (or lines) of jaws can be checked by clamping a test specimen with carbon copy paper to produce a gripping pat

39、tern on the test specimen and/or the jaw faces.SOURCE: ISO 13934-1:2013, 3.3, modified “under defined pretension” has been removed from the Note.4 PrincipleA fabric test specimen, gripped in its centre part by jaws of specified dimensions, is extended at constant rate until it ruptures. The maximum

40、force is recorded.5 SamplingSelect samples either in accordance with the procedure laid down in the material specification for the fabric or as agreed between the interested parties.In the absence of an appropriate material specification, the example of a suitable sampling procedure given in Annex A

41、 can be used.An example of a suitable pattern for cutting test specimens from the laboratory sample is given in Annex B. Avoid test specimens with folded or creased areas, selvedges, and areas not representative of the fabric.6 Apparatus6.1 CRE machineThe metrological confirmation system of the tens

42、ile-testing machine shall be in accordance with ISO 10012-1.The constant-rate-of-extension (CRE) machine shall have the general characteristics given in 6.1.1 to 6.1.6.6.1.1 The tensile-testing machine shall be provided with means for indicating or recording the force applied to the test specimen in

43、 stretching it to rupture. Under conditions of use, the accuracy of the apparatus shall be class 1 of ISO 7500-1. The error of the indicated or recorded maximum force at any point in the range in which the machine is used shall not exceed 1 %.6.1.2 If a class 2 tensile-testing machine according to I

44、SO 7500-1 is to be used, this shall be stated in the test report.6.1.3 If recording of force is obtained by means of data acquisition boards and software, the frequency of data collection shall be at least eight per second.6.1.4 The machine shall be capable of a constant rate of extension of 50 mm/m

45、in, with an accuracy of 10 %.6DIN EN ISO 13934-2:2014-06EN ISO 13934-2:2014 (E)6.1.5 The machine shall be capable of setting the gauge length to 100 mm or, if agreed, to 75 mm, to within 1 mm.6.1.6 The clamping device of the machine shall be positioned with the central point of the two jaws in the l

46、ine of applied force, the front edges shall be at right angles to the line of applied force and their clamping faces shall be in the same plane.The jaws shall be capable of holding the test specimen without allowing it to slip and designed so that they do not cut or otherwise weaken the test specime

47、n.The faces of the jaws shall be smooth and flat, except that when, even with packing, the test specimen cannot be held satisfactorily with flat-faced jaws, engraved or corrugated jaws can be used to prevent slippage. Other auxiliary materials for use with either smooth or corrugated jaws to improve

48、 specimen gripping include paper, leather, plastics, or rubber.For the grab test, the dimensional clamping area of the fabric shall be 25 mm 1 mm 25 mm 1 mm. This area can be achieved by either method a) or method b) described below and illustrated in Annex C.a) One clamp, 25 mm 40 mm minimum, prefe

49、rably 50 mm, positioned with the wider direction of the clamp perpendicular to the line of application of the force; a second clamp of the same dimensions positioned perpendicular to the first so that the wider direction of the clamp is parallel to the direction of application of the force.b) One clamp, 25 mm 40 mm minimum, preferably 50 mm, positioned with the wider direction of the clamp perpendicular to t