BS EN 12240-1997 Touch and close fasteners - Determination of the overall and effective widths of tapes and the effective width of a closure《接触和闭合扣锁 闭合带的总有效宽度以及有效期闭合宽度的测定》.pdf

《BS EN 12240-1997 Touch and close fasteners - Determination of the overall and effective widths of tapes and the effective width of a closure《接触和闭合扣锁 闭合带的总有效宽度以及有效期闭合宽度的测定》.pdf》由会员分享，可在线阅读，更多相关《BS EN 12240-1997 Touch and close fasteners - Determination of the overall and effective widths of tapes and the effective width of a closure《接触和闭合扣锁 闭合带的总有效宽度以及有效期闭合宽度的测定》.pdf（8页珍藏版）》请在麦多课文档分享上搜索。

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12240 : 1997 The Eu

2、ropean Standard EN 12240 : 1997 has the status of a British Standard ICS 61.040 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Touch and close fasteners Determination of the overall and effective widths of tapes and the effective width of a closureThis British Standard, havin

3、g been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 November 1997 BSI 1997 ISBN 0 580 28608 8 BS EN 12240 : 1997 Amendments issued since publication Amd. No. Date Text affected Natio

4、nal foreword This British Standard is the English language version of EN 12240 : 1997. The UK participation in its preparation was entrusted to Technical Committee TCI/66, Apparel, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee an

5、y enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references T

6、he British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. Compl

7、iance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 4, an inside back cover and a back cover.CEN European Committee for Standardization Comite Europe en d

8、e Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12240 : 1997 E EUROPEAN STANDARD EN 12240 NORME EUROPE ENNE EUROPA ISC

9、HE NORM June 1997 ICS 61.040 Descriptors: Haberdashery, touch and close fasteners, tapes, measurements, width English version Touch and close fasteners Determination of the overall and effective widths of tapes and the effective width of a closure Fermetures auto-agrippantes De termination de la lar

10、geur totale et de la largeur utile des rubans et de la largeur utile d une fermeture Haftverschlu sse Bestimmung der gesamten und der effektiven Breite der Ba nder eines Haftverschlusses und der effektiven Breite eines geschlossenen Haftverschlusses This European Standard was approved by CEN on 1997

11、-05-28. 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 obtai

12、ned on application to the Central Secretariat 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 Central Secre

13、tariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2

14、EN 12240 : 1997 BSI 1997 Foreword This European Standard 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

15、 by endorsement, at the latest by December 1997, and conflicting national standards shall be withdrawn at the latest by December 1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Aus

16、tria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Page 3 EN 12240 : 1997 BSI 1997 1 Scope This European Standard specifies a method for determining the overal

17、l widths and effective widths of tapes which comprise a touch and close fastener, and the effective width of the resulting closure. 2 Normative reference This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the

18、 appropriate places in the text and the publications are listed hereafter. For dated references, 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

19、publication referred to applies. EN 20139 Textiles Standard atmospheres for conditioning and testing (ISO 139 : 1973) 3 Definitions For the purposes of this European Standard the following definitions apply. 3.1 selvedge of a tape That part of the tape adjacent to the edge which does not contain any

20、 closure elements. 3.2 overall width of a tape The distance between the edges of the tape as measured by the method in 8.1. 3.3 effective width of a tape The distance between the edges of the pile surface of the tape as measured by the method in 8.2. 3.4 effective width of a closure The effective wi

21、dth of the male or female tape, whichever is the lower. 4 Principle Determination, by using three steel scales, of the overall and effective widths for the tapes which comprise a touch and close fastener and the effective width of the closure when the male and female tapes are closed together. 5 App

22、aratus Three steel rules capable of measuring to within 0,5 mm. 6 Test specimens Take one test specimen of length (100 2) mm of both the male and female tapes. 7 Conditioning Condition the test specimen for at least 24 h in accordance with the standard atmosphere for testing as specified in EN 20139

23、. Measure the tapes under these conditions. 8 Methods of measurement of width 8.1 Measurement of overall width of a tape For each of the test specimens, place the test specimen on a flat surface so that the pile surface is downwards and making sure that the tape is free from creases; place a steel s

24、cale on the back of the tape and perpendicular to the edges of the tape. Measure the overall width of the tape, including any selvedges, to an accuracy of 0,5 mm for tapes up to 100 mm width and 0,5 % for tapes of width greater than 100 mm. Repeat this procedure to give a total of three measurements

25、 for each test specimen. 8.2 Measurement of the effective width of a tape For each of the test specimens place the test specimen on a flat surface so that the pile surface is upwards, and, making sure that the tape is free from creases, place a steel scale flush against the base of the pile of the t

26、ape, one on either side. Place the third steel scale on top of the first two steel scales and perpendicular to their edges (see figure 1). Measure the distance between the edges of the first two steel scales which are against the pile of the tape to an accuracy of 0,5 mm for distances up to 100 mm,

27、and 0,5 % for distances greater than 100 mm. Repeat this procedure at three places for each test specimen.Page 4 EN 12240 : 1997 BSI 1997 1 2 3 Pile Selvedges Steel rule Figure 1. Measurement of effective width 9 Calculation and expression of results 9.1 Calculation of the overall width of a tape Fo

28、r each of the male and female tapes, calculate the arithmetic mean of the three measurements, according to 8.1, and express this to an accuracy of 0,5 mm for tapes up to 100 mm width and 0,5 % for tapes of width greater than 100 mm. Record this value as the overall width of the tape. 9.2 Calculation

29、 of the effective width of a tape For each of the male and female tapes, calculate the arithmetic mean of the three measurements, according to 8.2, and express this to an accuracy of 0,5 mm for tapes up to 100 mm width and 0,5 % for tapes of width greater than 100 mm. Record this value as the effect

30、ive width of the tape. 9.3 Calculation of the effective width of a closure The effective width of a closure is equal to the effective width of either of the male or female tapes, whichever is the lesser. 10 Test report The test report shall include the following information: a) the number and date o

31、f this European Standard; b) date of the test; c) a complete identification of the components, including where possible the type, source and manufacturers reference numbers; d) the overall width and effective width for each tape and the effective width of the closure; e) any deviation from this stan

32、dard or any incident likely to have affected the results.blankBSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |

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