DIN EN ISO 2062-2010 Textiles - Yarns from packages - Determination of single-end breaking force and elongation at break using constant rate of extension (CRE) tester (ISO 2062 200.pdf

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1、April 2010 Translation by DIN-Sprachendienst.English price group 10No 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

2、59.080.20!$aK“1626140www.din.deDDIN EN ISO 2062Textiles Yarns from packages Determination of single-end breaking force and elongation at breakusing constant rate of extension (CRE) tester (ISO 2062:2009)English translation of DIN EN ISO 2062:2010-04Textilien Garne von Aufmachungseinheiten Bestimmung

3、 der Hchstzugkraft und Hchstzugkraftdehnung von Garnabschnitten unterVerwendung eines Prfgerts mit konstanter Verformungsgeschwindigkeit (CRE)(ISO 2062:2009)Englische bersetzung von DIN EN ISO 2062:2010-04Textiles Fils sur enroulements Dtermination de la force de rupture et de lallongement la ruptur

4、e des fils individuels laide dun appareil dessai vitesse constante dallongement (ISO 2062:2009)Traduction anglaise de DIN EN ISO 2062:2010-04SupersedesDIN EN ISO 2062:1995-05www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 16 pages04.10

5、DIN EN ISO 2062:2010-04 2 A comma is used as the decimal marker. National foreword This standard 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 Germ

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

7、 follows: ISO 139 DIN EN ISO 139 ISO 2062 DIN EN ISO 2062 Amendments This standard differs from DIN EN ISO 2062:1995-05 as follows: a) The title of the standard has been supplemented by “using constant rate of extension (CRE) tester”. b) In subclause 1.4, the exception now also includes high molecul

8、ar polyethylene (HMPE) and ultra high molecular polyethylene (UHMPE) yarns. c) A new term “initial length” has been added under 3.8. d) Subclause 6.5 has been revised. e) Subclause 8.1.7 has been technically revised and rendered more precise. f) The former note in 8.1.7 is now subclause 8.1.8. Previ

9、ous editions DIN 53834: 1961-09 DIN 53834-1: 1976-02 DIN EN ISO 2062: 1995-05 National Annex NA (informative) Bibliography DIN EN ISO 139, Textiles Standard atmospheres for conditioning and testing DIN EN ISO 2060, Textiles Yarn from packages Determination of linear density (mass per unit length) by

10、 the skein method EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2062 December 2009 ICS 59.080.20 Supersedes EN ISO 2062:1995English Version Textiles - Yarns from packages - Determination of single-end breaking force and elongation at break using constant rate of extension (CRE) tester (IS

11、O 2062:2009) Textiles - Fils sur enroulements - Dtermination de la force de rupture et de lallongement la rupture des fils individuels laide dun appareil dessai vitesse constante dallongement (ISO 2062:2009) Textilien - Garne von Aufmachungseinheiten - Bestimmung der Hchstzugkraft und Hchstzugkraftd

12、ehnung von Garnabschnitten unter Verwendung eines Prfgerts mit konstanter Verformungsgeschwindigkeit (CRE) (ISO 2062:2009) This European Standard was approved by CEN on 21 November 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for givi

13、ng this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official ver

14、sions (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 to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgiu

15、m, 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 United Kingdom. EUROPEAN COMMITTEE FOR S

16、TANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2062:2009: EContents Page Foreword3 Introduc

17、tion .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 Principle7 5 Apparatus and reagents7 6 Sampling.7 7 Preconditioning and conditioning .8 8 Procedure .9 8.1 General9 8.2 Method A Manual 10 8.3 Method B Automatic 10 8.4 Method C Manual for conditioned specimens 10 8.5 Method D M

18、anual for wet specimens. 10 9 Test report . 10 9.1 General information 10 9.2 Test results 11 Annex A (informative) Alternative methods using constant rate of travel (CRT) and constant rate of loading (CRL) testers . 12 A.1 Scope . 12 A.2 Procedure 12 A.2.1 General. 12 A.2.2 Method E: CRT testers, m

19、anual. 12 A.2.3 Method F: CRT testers, manual. 12 A.2.4 Method G: CRT testers, manual 12 A.2.5 Method H: CRL testers, manual 13 A.2.6 Method J: CRL testers, automatic. 13 A.2.7 Method K: CRL testers, manual 13 A.2.8 Method L: CRL testers, manual. 13 Bibliography. 14 DIN EN ISO 2062:2010-04 EN ISO 20

20、62:2009 (E) 2 Foreword collaboration with Technical Committee CEN/TC 248 “Textiles and textile products” the secretariat of 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 Ju

21、ne 2010, and conflicting national standards shall be withdrawn at the latest by June 2010. 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 rig

22、hts. This document supersedes EN ISO 2062:1995. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Ger

23、many, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 2062:2009 has been approved by CEN as a EN ISO 2062:2009 wit

24、hout any modification. This document (EN ISO 2062:2009) has been prepared by Technical Committee ISO/TC 38 “Textiles” in DIN EN ISO 2062:2010-04 EN ISO 2062:2009 (E) 3 Introduction In the 1950s and 1960s when this International Standard was first prepared, three types of tensile testers were in wide

25、 use: constant rate of specimen extension (CRE), constant rate of travel (CRT) and constant rate of loading (CRL). It was therefore advisable to state the rate of operation in a way which would be common to all three types of tester. In addition, the best possible agreement was sought between the te

26、st results of the three types of tester. Consequently, the principle of constant time to break was adopted, and 20 s to break was chosen for this International Standard and also for a number of national standards. In the early 1990s, CRE testers were recognized as the best type. As CRT and CRL teste

27、rs were still in use internationally, the procedure for using them was included in an informative annex. There is no assurance that the results from the three types of tester will agree. This International Standard considers CRE testers only, so the time-to-break principle was no longer needed and a

28、 simpler statement of rate of extension was used. The rate of extension of 100 % per minute has been adopted as standard, but higher rates were permitted by agreement for automatic testers. CRT and CRL testers are now considered to be obsolete. The methods of using them are deprecated and their incl

29、usion in informative Annex A does not have an influence on the status of this International Standard. DIN EN ISO 2062:2010-04 EN ISO 2062:2009 (E) 4 1 Scope 1.1 This International Standard specifies methods for the determination of the breaking force and elongation at break of textile yarns taken fr

30、om packages. Four methods are given: A: manual; specimens are taken directly from conditioned packages; B: automatic; specimens are taken directly from conditioned packages; C: manual; relaxed test skeins are used after conditioning; D: manual; specimens are used after wetting. 1.2 Method C is used

31、in cases of dispute regarding elongation at break of the yarn. NOTE Methods A, B and C are expected to give the same results for yarn strength, but Method C might give somewhat truer (and higher) values of elongation than A or B. Method D is likely to give results differing, for both breaking force

32、and elongation at break, from those obtained by methods A, B or C. 1.3 This International Standard specifies methods using constant rate of specimen extension (CRE) tensile testers. Testing on the now obsolete constant rate of travel (CRT) and constant rate of loading (CRL) instruments is covered, f

33、or information, in Annex A, in recognition of the fact that these instruments are still in use and can be used by agreement. 1.4 This International Standard applies to all types of yarns, except glass, elastomeric, aramid, high molecular polyethylene (HMPE), ultra high molecular polyethylene (UHMPE)

34、, ceramic and carbon yarns and polyolefin tape. NOTE A method for the testing of glass yarns is given in ISO 3341. 1.5 This International Standard is applicable to yarns from packages but can be applied to yarns extracted from fabrics, subject to agreement between the interested parties. 1.6 This In

35、ternational Standard is intended for the single-end (single-strand) testing of yarns. NOTE The skein method of testing is given in ISO 6939. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited

36、applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN EN ISO 2062:2010-04 EN ISO 2062:2009 (E) 5 ISO 139, Textiles Standard atmospheres for conditioning and testing ISO 2060, Textiles Yarn from packages Determination of linear density

37、(mass per unit length) by the skein method 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 breaking force maximum force applied to a specimen in a tensile test carried to rupture NOTE For yarns, the breaking force or load is preferably expres

38、sed in centinewtons. 3.2 elongation at break increase in length of a specimen corresponding to the breaking force NOTE For yarns, elongation at break is expressed as a percentage of the initial length. 3.3 breaking tenacity ratio of a yarns breaking force to its linear density NOTE For yarns, breaki

39、ng tenacity is expressed in centinewtons per tex. 3.4 constant rate of specimen extension (CRE) tester testing machine in which one end of the specimen is held in a virtually stationary clamp and the other end is gripped in a clamp that is driven at a constant speed NOTE A suitable system is provide

40、d for detecting and recording the force applied and the elongation. 3.5 clamp that part of a tensile testing machine used to grip the specimen by means of suitable jaws 3.6 jaws those elements of a clamp which grip the specimen 3.7 gauge length nominal length distance between the clamping points of

41、the tester NOTE With bollard or capstan clamps, it is the distance between their gripping points, measured along the path of the yarn. 3.8 initial length length of a test specimen (between the clamping points) under specified pretension at the beginning of the test 3.9 package length of yarn in a fo

42、rm suitable for use, handling, storing, etc. NOTE Packages can be supported (e.g. cones, bobbins) or unsupported (e.g. skeins, balls). DIN EN ISO 2062:2010-04 EN ISO 2062:2009 (E) 6 4 Principle A specimen of yarn is extended until rupture by a suitable mechanical device, and the breaking force and e

43、longation at break are recorded. A constant rate of extension of 100 % per minute (based on the gauge length) is used, but higher or lower rates are permitted by agreement. Two gauge lengths are permitted: usually 500 mm (with a rate of extension of 500 mm/min), and exceptionally 250 mm (with a rate

44、 of extension of 250 mm/min). 5 Apparatus and reagents 5.1 Constant rate of specimen extension (CRE) tester, which complies with the following requirements. The tester shall be capable of being set at gauge lengths of 500 mm 2 mm or 250 mm 1 mm, or preferably both. The constant rate of extension of

45、the moving clamp shall be 500 mm/min 10 mm/min or 250 mm/min 5 mm/min, to an accuracy of 2 %, with lower or, for automatic testers, higher rates being permitted by agreement. The maximum error of the indicated force shall not exceed 2 % of the true force. The tester may be of the manual or automatic

46、 type. The clamps for gripping the specimens shall prevent slipping or cutting of the specimens and breaks at the jaws. Flat-faced unlined jaws shall be the normal type but, if these cannot prevent slippage, then other types of clamps may be used on agreement, such as lined jaws, bollard clamps or o

47、ther types of snubbing devices. As the type of clamp may influence the reading of the elongation, all interested parties shall use the same type. The tester shall be equipped with an autographic force/elongation recording device of sufficiently fast response, or with a system directly recording the

48、breaking force and elongation at break. The tester shall be capable of setting a pretension either by means of a set of pretensioning weights or by using the force-measuring device. 5.2 Reel, for preparing test skeins from the laboratory sample (for methods C and D). 5.3 Swift or similar device, for

49、 holding the test skein under zero tension and permitting easy transfer of the yarn to the tensile tester (for Method C). 5.4 Receptacles, for immersing the sample or the specimens in water (for Method D). 5.5 Tap water, at room temperature (for Method D). 5.6 Non-ionic surfactant, 0,1 % (volumetric) aqueous solution (for Method D). 6 Sampling 6.1 Samples shall be taken in accordance with a) the directions given in the material specification when available, or b) the procedures described in 6.2 to 6