SIST EN 15930:2010

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Faser - Elastizität von Fasern - PrüfungFibres - Élasticité des fibres - Méthodes d'essaiFibres - Elasticity of fibres - Test methods59.060.01Tekstilna vlakna na splošnoTextile fibres in generalICS:Ta slovenski standard je istoveten z:EN 15930:2010SIST EN 15930:2010en,fr,de01-december-2010SIST EN 15930:2010SLOVENSKI
STANDARD



SIST EN 15930:2010



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15930
September 2010 ICS 59.060.01 English Version
Fibres - Elasticity of fibres - Test methods
Fibres - Elasticité des fibres - Méthodes d'essais
Fasern - Elastizität von Fasern - Prüfung This European Standard was approved by CEN on 7 August 2010.
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 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 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, Belgium, Bulgaria, Croatia, 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15930:2010: ESIST EN 15930:2010



EN 15930:2010 (E) 2 Contents Page Foreword .31Scope .42Normative references .43Terms and definitions .44Principle .55Apparatus .56Atmosphere of conditioning and testing .67Sampling .68Preparation of the test specimens .69Procedure .710Calculation and expression of the results . 1111Test report . 12Annex A (normative)
"Elastic" qualification of fibres . 14Bibliography . 15 SIST EN 15930:2010



EN 15930:2010 (E) 3 Foreword This document (EN 15930:2010) has been prepared by 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 March 2011, and conflicting national standards shall be withdrawn at the latest by March 2011. 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 rights. 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, Croatia, 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 United Kingdom. SIST EN 15930:2010



EN 15930:2010 (E) 4
1 Scope This test method covers the determination of the elasticity of fibres and may lead to classification of the fibre as elastic fibre (see Annex A).
It is applicable to single man-made crimped and uncrimped fibres. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12751, Textiles — Sampling of fibres, yarns and fabrics for testing EN ISO 139, Textiles — Standard atmospheres for conditioning and testing (ISO 139:2005) EN ISO 1973, Textile fibres — Determination of linear density — Gravimetric method and vibroscope method (ISO 1973:1995) EN ISO 7500-1, Metallic materials — Verification of static uniaxial testing machines — Part 1: Tension/compression testing machines — Verification and calibration of the force-measuring system (ISO 7500-1:2004) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 elasticity property of a fibre by virtue of which it tends to recover its original size and shape immediately after the removal of the force causing deformation 3.2 linear density mass per unit length of an essentially linear structure 3.3 constant-rate-of-extension (CRE) testing machine tensile testing machine provided with one clamp, which is virtually stationary, and another clamp, which moves with a constant speed throughout the test, the entire testing system being virtually free from deflection 3.4 gauge length distance between the two effective clamping or holding points of a testing device 3.5 initial length length of the test specimen between the two effective clamping or holding points at the required pretension, before testing SIST EN 15930:2010



EN 15930:2010 (E) 5 3.6 extension increase in length of a test specimen expressed in units of length e.g. millimetres 3.7 elongation ratio of the extension of the test specimen to its initial length, expressed as a percentage 3.8 maximum force force recorded in Newton at the position when a test specimen is taken to a fixed extension 3.9 cycle process whereby a fibre is taken from the gauge length to fixed extension or elongation and returned to gauge length 3.10 elastic recovery recovered elongation expressed as a percentage of the specified elongation 3.11 permanent deformation ratio of un-recovered extension of the test specimen after cycling to its initial length, expressed as a percentage 3.12 force decay loss of force measured over time when a test specimen is stretched to a specified elongation or extension and held at this position for a given time period 4 Principle The measurements are performed on an individual fibre. A fibre is cycled between the gauge length and a specified elongation at a constant rate for an agreed number of cycles. The fibre can be maintained at the specified elongation or at the gauge length – for a specific period of time. Its elasticity is determined by measuring certain physical characteristics. 5 Apparatus 5.1 Pretension device Pretension device able to apply (0,010 ± 0,005) cN/tex on the individual test specimen. NOTE Pretension may be applied using masses with discontinuous values (e.g. adhesive paper or clips) or using a high-resolution load cells. 5.2 Tensile testing machine The constant-rate-of-extension (CRE) testing machine shall conform to the following. a) The tensile testing machine shall be provided with the means for indicating or recording the force and elongation values when cycling between gauge length and either a
...