DIN EN ISO 9073-5-2009 Textiles - Test methods for nonwovens - Part 5 Determination of resistance to mechanical penetration (ball burst procedure) (ISO 9073-5 2008) English version.pdf

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1、January 2009DEUTSCHE NORM English price group 9No part of this standard 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 59.080.30!$U=J“1502639w

2、ww.din.deDDIN EN ISO 9073-5Textiles Test methods for nonwovens Part 5: Determination of resistance to mechanical penetration (ball burstprocedure) (ISO 9073-5:2008)English version of DIN EN ISO 9073-5:2009-01Textilien Prfverfahren fr Vliesstoffe Teil 5: Bestimmung des Widerstandes gegen mechanische

3、Durchdringung(Kugeldruckversuch) (ISO 9073-5:2008)Englische Fassung DIN EN ISO 9073-5:2009-01www.beuth.deDocument comprises 14 pagesDIN EN ISO 9073-5:2009-01 2 National foreword This standard has been published in accordance with a decision taken by Technical Committee CEN/TC 248 “Textiles and texti

4、le products” (Secretariat: BSI, United Kingdom) to adopt International Standard ISO 9073-5:2008 as a European Standard. ISO 9073-5:2008 was prepared by Technical Committee ISO/TC 38 “Textiles”. At present a DIN committee does not exist for this standard since the parties concerned have not shown any

5、 interest in work on the subject. The Normenausschuss Materialprfung (Materials Testing Standards Committee) is obliged to publish the standard, however, as the subject falls in its domain. DIN EN ISO 9073 consists of the following parts, under the general title Textiles Test methods for nonwovens:

6、Part 1: Determination of mass per unit area Part 2: Determination of thickness Part 3: Determination of tensile strength and elongation Part 4: Determination of tear resistance Part 5: Determination of resistance to mechanical penetration (ball burst procedure) Part 6: Absorption Part 7: Determinati

7、on of bending length Part 8: Determination of liquid strike-through time (simulated urine) Part 9: Determination of drapability including drape coefficient Part 10: Lint and other particles generation in the dry state Part 11: Run-off Part 12: Demand absorbency Part 13: Repeated liquid strike-throug

8、h time Part 14: Coverstock wetback Part 15: Determination of air permeability Part 16: Determination of resistance to penetration by water (hydrostatic pressure) Part 17: Determination of water penetration (spray impact) Part 18: Determination of breaking strength and elongation of nonwoven material

9、s using the grab tensile test DIN EN ISO 9073-5:2009-01 3 The DIN Standards corresponding to the International Standards referred to in the EN are as follows: ISO 139 DIN EN ISO 139 ISO 186 DIN ISO 186 ISO 10012 DIN EN ISO 10012 National Annex NA (informative) Bibliography DIN EN ISO 139, Textiles S

10、tandard atmospheres for conditioning and testing DIN ISO 186, Paper and board Sampling to determine average quality DIN EN ISO 10012, Measurement management systems Requirements for measurement processes and measuring equipment DIN EN ISO 9073-5:2009-01 4 This page is intentionally blank EUROPEAN ST

11、ANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9073-5 October 2008 ICS 59.080.30 English Version Textiles - Test methods for nonwovens - Part 5: Determination of resistance to mechanical penetration (ball burst procedure) (ISO 9073-5:2008) Textiles - Mthodes dessai pour nontisss - Partie 5: Dterminat

12、ion de la rsistance la pntration mcanique (mthode dclatement la bille) (ISO 9073-5:2008) Textilien - Prfverfahren fr Vliesstoffe - Teil 5: Bestimmung des Widerstandes gegen mechanische Durchdringung (Kugeldruckversuch) (ISO 9073-5:2008) This European Standard was approved by CEN on 27 September 2008

13、. 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

14、 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 Ce

15、ntre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Pola

16、nd, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by

17、 any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9073-5:2008: EContents Page 2 DIN EN ISO 9073-5:2009-01 EN ISO 9073-5:2008 (E) Foreword .3 1 Scope4 2 Normative references4 3 Terms and definitions .4 4 Principle .5 5 Apparatus.5 6 Procedure.6 7 Test report7 Annex A (informativ

18、e) General information regarding precision.8 Annex B (informative) General information regarding causes for low precision when ball burst testing.9 Bibliography10 Foreword 3 EN ISO 9073-5:2008 (E) DIN EN ISO 9073-5:2009-01 This document (EN ISO 9073-5:2008) has been prepared by Technical Committee I

19、SO/TC 38 “Textiles“ in 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 Ap

20、ril 2009, and conflicting national standards shall be withdrawn at the latest by April 2009. 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 r

21、ights. 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, Germany, Greece, Hungary, Iceland, Ireland,

22、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 9073-5:2008 has been approved by CEN as a EN ISO 9073-5:2008 without any modification. 1 Scope This p

23、art of ISO 9073 specifies a method for determining the resistance to mechanical penetration of nonwoven fabrics by a ball of a given diameter. The method is primarily designed to be used on nonwovens with some degree of elasticity, for which a regular burst test is not applicable. 2 Normative refere

24、nces 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. ISO 139, Textiles Standard atmospheres for c

25、onditioning and testing ISO 186, Paper and board Sampling to determine average quality ISO 10012:2003, Measurement management systems Requirements for measurement processes and measuring equipment 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3

26、.1 nonwoven fabric fabric made directly from a web of fibres, without the yarn preparation necessary for weaving and knitting 3.2 constant-rate-of-traverse (CRT) testing machine testing machine in which the moving clamp moves at a uniform rate 3.3 bursting strength force or pressure required to rupt

27、ure a textile by distending it with a force, applied at right angles to the plane of the fabric, under specified conditions 3.4 elongation distance the crosshead travels from the plane of the sample at the start of the test to the point of peak load 4 DIN EN ISO 9073-5:2009-01 EN ISO 9073-5:2008 (E)

28、 4 Principle A specimen of nonwoven is securely clamped under tension between two grooved, ring-shaped plates secured horizontally in the position of the lower, fixed, clamp of a constant-rate-of-traverse (CRT) tensile-testing machine (see Figure 1). A force is exerted vertically downwards against t

29、he specimen by a polished hardened-steel ball that is attached in the position of the upper, movable, clamp. The test is terminated when the ball ruptures the material. 5 Apparatus 5.1 Constant-rate-of-traverse (CRT) tensile-testing machine, converted for use in the compression mode and fitted with

30、a ball burst attachment (5.2) replacing the two clamp assemblies (see Figure 1). 5.2 Ball burst attachment, consisting of a) a polished steel ball (5.3) that replaces the upper, moving, clamp of the tensile-testing machine; b) a ring-clamp mechanism (5.4) that replaces the lower, fixed, clamp of the

31、 tensile-testing machine. 5.3 Polished steel ball, having a diameter of (25,400 0,005) mm and spherical to within 0,005 mm. The size of the ball may differ from that stated if so agreed upon by all interested parties and recorded in the test report. 5.4 Ring clamp, having an internal diameter of (44

32、,500 0,025) mm. The size of the ring clamp may differ from that stated if so agreed upon by all interested parties and recorded in the test report. Figure 1 Apparatus 5 EN ISO 9073-5:2008 (E) DIN EN ISO 9073-5:2009-01 6 Procedure 6.1 Specimens shall be selected in accordance with ISO 186. Bring the

33、specimens from the prevailing atmosphere to moisture equilibrium for testing in the standard atmosphere as prescribed in ISO 139. If agreed upon by all parties, conditioning and testing may be carried out without preconditioning the test specimens. Care in handling shall be observed so that test spe

34、cimens do not contact any contaminants such as soap, salt, oil, etc., which might facilitate or hinder water penetration. No dirt or other foreign material shall be allowed on the specimen. Do not write on the test area of the specimen. 6.2 Each test specimen shall be at least 125 mm square or a cir

35、cle at least 125 mm in diameter. Test specimens need not be cut for testing. Take no specimens nearer to the edge of the fabric than 300 mm. 6.3 Unless otherwise agreed upon and recorded in the test report, as when specified in an applicable material specification, take five test specimens from the

36、laboratory sample(s) of fabric. 6.4 Metrological confirmation of the test apparatus shall be in compliance with Clause 7, Figure 2 and Annex A of ISO 10012:2003. Also take into account the following: Set-up procedures for machines from different manufacturers may vary. Prepare the machine and verify

37、 its calibration as directed in the manufacturers instructions (see also Annex B). Set the distance for the travel of the ball so that it penetrates the test material but does not come in contact with the lower stage (very important). Set the testing machine for a crosshead speed of (300 10) mm/min

38、unless otherwise specified and agreed upon by all parties. 6.5 Verify the total operating system by testing specimens of a standard material for ball burst and comparing the data obtained with historical data from the same standard material. It is recommended that this verification of the system be

39、carried out on a daily basis before use, but at a minimum it should be done weekly. In addition, the total operating system should be verified whenever there are changes in the load cells. Select and prepare a standard material which has a ball burst strength in the range of interest. Test the stand

40、ard-material specimens in the same manner as unknown specimens (see 6.6). Determine the bursting force for each standard-material specimen, the mean value and the standard deviation from the mean. Compare the new data with previous data for the same material. If any of the data values are outside th

41、e tolerances established, recheck the total system to locate the cause for the deviation. Do not start testing until the results of standard-material testing are within these tolerances. 6.6 Place a specimen under tension in the ring clamp and fasten it securely by means of the screws or pneumatic m

42、echanism. Start the CRT machine, using a downward crosshead speed of (300 10) mm/min and continue at that speed until the specimen bursts. Record, to the nearest 5 N, the ball burst strength of the specimen. 6.7 Ignore any failure that is confined to the edge of the clamp and repeat the test on anot

43、her test specimen. Ignore any test result where the test specimen slips in the clamp and repeat the test on another test specimen. NOTE Slippage is normally evident as blurring of the marks left by the ring clamp on the test specimen. 6 DIN EN ISO 9073-5:2009-01 EN ISO 9073-5:2008 (E) 7 Test report

44、The test report shall include all information needed to duplicate the test procedure and its results: a) a reference to this part of ISO 9073; b) the type of test specimen and its size; c) the number of specimens tested; d) the type of tensile-testing machine used; e) the size of the ball and the ri

45、ng clamp used, and any deviation from the standard size relationship; f) the size of the load cell used to perform the test; g) the name and version of any software used to calculate the results; h) the laboratory conditions under which the testing was done (temperature and humidity); i) whether or

46、not the specimens were conditioned prior to testing and, if so, for how long; j) the ball burst strength, recorded to the nearest 5 N, of each specimen and the average ball burst strength of all the specimens which gave valid results; k) any modifications made to the test procedure specified; l) the

47、 date of the test. 7 EN ISO 9073-5:2008 (E) DIN EN ISO 9073-5:2009-01 Annex A (informative) General information regarding precision A study of the precision of this method was carried out in which the ball was (25,400 0,005) mm in diameter and spherical to within 0,005 mm; the ring clamp had an inte

48、rnal diameter of (44,500 0,025) mm; three different materials were tested; three different laboratories participated. Based as it is on limited information from three laboratories, the within-laboratory and between-laboratory standard deviations (srand sR) shown in Table A.1 are approximate. This ta

49、ble illustrates what the three laboratories found when all the readings were taken by well-trained operators using specimens randomly tested from three different samples of material. Because tests were conducted in only three laboratories, the estimates of between-laboratory precision may be either underestimated or overestimated to some extent and should be used with special caution. However, when agreed upon between the contractual parties, the approximate analysis reporte