EN ISO 5079-1995 en Textiles - Fibres - Determination of Breaking Force and Elongation at Break of Individual Fibres《纺织纤维 单纤维断裂时断裂力和伸长率的测定(ISO 5079-1995)》.pdf

《EN ISO 5079-1995 en Textiles - Fibres - Determination of Breaking Force and Elongation at Break of Individual Fibres《纺织纤维 单纤维断裂时断裂力和伸长率的测定(ISO 5079-1995)》.pdf》由会员分享，可在线阅读，更多相关《EN ISO 5079-1995 en Textiles - Fibres - Determination of Breaking Force and Elongation at Break of Individual Fibres《纺织纤维 单纤维断裂时断裂力和伸长率的测定(ISO 5079-1995)》.pdf（15页珍藏版）》请在麦多课文档分享上搜索。

1、CEN EN*ISO*5079 95 3404589 OL2619b 889 BRITISH STANDARD Textiles - Fibres - Determination of breaking force and elongation at break of individual fibres The European Standard EN IS0 5079 : 1995 has the status of a British Standard ICs 59.060 BS EN IS0 5079 : 1996 NO COPYING WITHOUT BSI PERMISSION EX

2、CEPT AS PERMITTED BY COPYRIGHT LAW !%m CEN EN*ISO*5079 95 3404589 O126197 715 BS EN IS0 5079 : 1996 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee TCI/24, Physical testing of textiles, upon which the following bodies wer

3、e represented Association of Consulting Scientists Association of Suppliers to the British Clothing industry British Apparel and Textile Confederation British Measurement and Testing Association British Polyolefin Textiles Association British Textile Machinery Association British Textile Technology

4、Group British Throwskrs? Association Furniture industry Research Association International Wool Secretariat Ministry of Defence SATRA Footwear Technology Centre Society of Dyers and Colourists Textile Finishers? Association Textile Institute This British Standard, having been prepared under the dire

5、ction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 16 May 1996 O BSI 1996 Amendments issued since publication Amd.No. IDate 1 Text affected The following BSI references relate to the work on this standard: Committe

6、e reference TCU24 Draft for cornent 93B06144 DC I I ISBN O 680 26726 6 CEN EN*IS0*5077 75 m 3404587 OL2bL98 651 m BS EN IS0 5079 : 1996 Contents Committees responsible National foreword page Inside front cover u Foreword 2 1 2 3 4 6 6 7 8 9 10 Scope Normative references Definitions Principle Apparat

7、us and reagents Conditioning and testjng atmospheres Procedure Expression of results Test report sampling 3 3 3 4 4 5 5 5 6 6 Annexes A (informative) Mounting of test specimens 8 ZA (normative) Normative references to international publications with their Table 1 Pretension forces 5 Figure 1 Wical f

8、orcdelongation curve 4 relevant European publications 9 O BSI 1996 i CEN EN*IS0*5079 95 W 3404589 OL2bL9 598 W BS EN IS0 5079 : 1996 National foreword This British Standard has been prepared by Technical Committee TCI/24 and is the English language version of EN IS0 5079 : 1995, Tat b) the mean elon

9、gation at break of the fibres tested, expressed in percent to two significant figures; c) the coefficients of variation, expressed as a per- centage of the breaking force and as a percentage of the elongation at break, to the nearest 0.1 %; 3404587 0326205 633 d) the 95 % confidence intervals of the

10、 breaking force expressed in centinewtons, and of the elongation at break expressed in percent, rounded off to the same precision as the mean values; e) if required, the breaking tenacity, in centinewtons per tex, to the nearest 0,l cN/tex. For the purposes of this International Standard, the breaki

11、ng tenacity can be calculated by either a) dividing the breaking force for each fibre by the linear density for the same fibre, measured in ac- cordance with IS0 1973 using the vibroscope method. In this case the mean breaking tenacity and coefficient of variation can be calculated; or b) dividing t

12、he mean breaking force by the mean value of linear density of the laboratory sample, measured in accordance with IS0 1973 using the gravimetric method. If applicable, a) is the preferred method. 10 Test report The test report shall include the following information. 10.1 General reference to this In

13、ternational Standard and date of test; complete identification of the sample; type of package and its condition (e.g. raw, bleached, dyed); conditioning and testing atmosphere used and/or the wet-state treatment of the specimens; sampling scheme used, number of specimens tested and number of fibres

14、discarded because of jaw breaks and/or slippage; type of clamps and jaws used; initial length, rate of elongation, in percent per minute, and pretension; any deviation, by agreement or otherwise, from the procedure specified. CEN EN*ISO*5079 95 3404589 0326206 558 Page 7 EN IS0 5079 : 1995 10.2 Test

15、 results d) 95 % confidence intervals of breaking force in centinewtons, and elongation at break in percent; a) mean breaking force, in centinewtons; e) mean linear density of the fibres, in decitex (if b) mean elongation at break, in percent; breaking tenacity is required), as well as the method us

16、ed for determination of linear density; c) coefficients of variation, in percent of the breaking force and in percent of the elongation at break; breaking tenacity (if required), in centinewtons per tex. f) CEN EN*IS0+5079 95 3404587 O326207 494 Page 8 EN IS0 5079 : 1995 Annex A (informative) Mounti

17、ng of test specimens A.l Great care should be taken to ensure that the fibre is not damaged during mounting; for example, the length of the fibre under test should not be held with tweezers. A.2 For brittle fibres, a carrier may be used as fol- lows. A rectangular hole, the length of which is equal

18、to the gauge length, is cut into a thin card and the fi- bre is mounted across the hole by means of some suitable adhesive. It is essential that the adhesive should not spread over the length of the fibre under test. After the specimen is clamped, cut the sides of the carrier which are parallel to t

19、he fibre axis. For wet tests, both the card and the adhesive should be re- sistant to water. A.3 should be attached to the test specimen. For pretensioned mounting, suitable fibre clips CEN EN*IS0*5079 95 = 3404589 Olt26208 320 Page 9 EN IS0 5079 : 1995 Annex ZA (normative) Normative references to i

20、nternational publications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These nonnative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated r

21、eferences, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. Publication Year ltle IS0 139 1973 T Fax: O181 996 74

22、00. BSI offers members an individual updating service called PLUS which ensures that subscribers automatidly receive the latest editions of standards. Buying standards Orders for ali BSI, international and foreign standards publications should be addressed to Customer Services, Sales Department at C

23、hiswick Tel O181 996 7000; Fax: O181 996 7001. In response to orders for intedonal standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on don

24、al, European and intedonal standards through its Library, the Standardline Database, the BSI Information Technology Service (BITS) and its Technical Help to Exporters Service. Contact the Information Department at Chiswick Tel: O181 996 7111; Fax: O181 996 7048. Subscribing members of BSI are kept u

25、p to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Customer Services, Membership at Chiswick Tel O181 996 7002; Fax O181 996 7001. Copyright Copyright subsists in all BSI publications. BSI also h

26、olds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a relxieval system or transmitted in any form or by any means - electronic, photocopying, reco

27、rding or otherwise - without prior written permission from BSI. This does not preclude the free use, in the com of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained If permission is grante4 the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager, BSI, 389 Chiswick High Road, London W4 4AL ISBN O 580 26726 6 TCY24