1、April 2013 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、85.080.20!*_D=“7603326www.din.deDDIN EN ISO 12625-11Tissue paper and tissue products Part 11: Determination of wet ball burst strength (ISO 12625-11:2012);English version EN ISO 12625-11:2012,English translation of DIN EN ISO 12625-11:2013-04Tissue-Papier und Tissue-Produkte Teil 11: Bestimmung der
3、Nass-Berstfestigkeit mit einem Durchstokrper(ISO 12625-11:2012);Englische Fassung EN ISO 12625-11:2012,Englische bersetzung von DIN EN ISO 12625-11:2013-04Papier tissue et produits tissues Partie 11: Dtermination de la rsistance lclatement ltat humide, mthode laballe (ISO 12625-11:2012);Version angl
4、aise EN ISO 12625-11:2012,Traduction anglaise de DIN EN ISO 12625-11:2013-04www.beuth.deDocument comprises 15 pagesIn case of doubt, the German-language original shall be considered authoritative.04.13DIN EN ISO 12625-11:2013-04 2 A comma is used as the decimal marker. National foreword This documen
5、t (EN ISO 12625-11:2012) has been prepared by Technical Committee CEN/TC 172 “Pulp, paper and board”, Working Committee WG 8 “Test methods for soft tissue papers” (Secretariat: DIN, Germany) in collaboration with Technical Committee ISO/TC 6 “Paper, board and pulps”. The responsible German body invo
6、lved in its preparation was the Normenausschuss Papier, Pappe und Faserstoff (Paper, Board and Pulps Standards Committee), Working Committee NA 074-02-05 AA Prfverfahren fr Tissue-Papier und Tissue-Produkte. The determination of wet ball burst strength is the counterpart to the determination of ball
7、 burst strength as specified in DIN EN ISO 12625-9. Contrary to Part 9, the inner clamping diameter of the two concentric rings has been specified to be 50 mm. A general adjustment of both values to 50 mm is in the course of preparation. It should be noted that this European Standard and all other s
8、tandards of the EN ISO 12625 series under CEN leadership have been submitted at the same time to ISO/TC 6/SC 2 “Test methods and quality specifications for paper and board” for parallel voting under the Vienna Agreement. The DIN Standards corresponding to the International Standards referred to in C
9、lause 2 of this standard are as follows: ISO 186 DIN EN ISO 186 ISO 7500-1 DIN EN ISO 7500-1 ISO 12625-1 DIN EN ISO 12625-1 ISO 12625-9 DIN EN ISO 12625-9 ISO 187 DIN EN 20187 National Annex NA (informative) Bibliography DIN EN 20187, Paper, board and pulps Standard atmosphere for conditioning and t
10、esting and procedure for monitoring the atmosphere and conditioning of samples DIN EN ISO 186, Paper and board Sampling to determine average quality DIN EN ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and ca
11、libration of the force-measuring system DIN EN ISO 12625-1, Tissue paper and tissue products Part 1: General guidance on terms DIN EN ISO 12625-9, Tissue paper and tissue products Part 9: Determination of ball burst strength EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12625-11 December
12、2012 ICS 85.060 English Version Tissue paper and tissue products - Part 11: Determination of wet ball burst strength (ISO 12625-11:2012) Papier tissue et produits tissues - Partie 11: Dtermination de la rsistance lclatement ltat humide, mthode la balle (ISO 12625-11:2012) Tissue-Papier und Tissue-Pr
13、odukte - Teil 11: Bestimmung der Nass-Berstfestigkeit mit einem Durchstokrper (ISO 12625-11:2012) This European Standard was approved by CEN on 18 December 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
14、 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-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, F
15、rench, 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-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgar
16、ia, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turk
17、ey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN I
18、SO 12625-11:2012: EContents PageForeword .Introduction 1 Scope .2 Normative references 3 Terms and definitions .4 Principle 5 Reagents 6 Apparatus .6.1 General .6.2 Clamping system .6.3 Penetration system 6.4 Force measuring system .6.5 Drive mechanism 6.6 Water application system 7 Sampling 8 Condi
19、tioning 8.1 General .8.2 Rapid ageing (curing) 9 Preparation of test pieces .9.1 General .9.2 Preparation of test pieces 10 Procedure.11 Calculation 512 Test report Annex A (informative) Precision Annex B (informative) Adaptor .Bibliography .DIN EN ISO 12625-11:2013-04 EN ISO 12625-11:2012 (E) 23455
20、56666677888888999910111213Foreword This document (EN ISO 12625-11:2012) has been prepared by Technical Committee CEN/TC 172 “Pulp, paper and board“, the secretariat of which is held by DIN, in collaboration with Technical Committee ISO/TC 6 “Paper, board and pulps“. This European Standard shall be g
21、iven the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2013, and conflicting national standards shall be withdrawn at the latest by June 2013. Attention is drawn to the possibility that some of the elements of this document may be
22、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 organisations of the following countries are bound to implement this European Standard: Austria, Bel
23、gium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switz
24、erland, Turkey and the United Kingdom. DIN EN ISO 12625-11:2013-04 EN ISO 12625-11:2012 (E) 312625 consists of the following parts, under the general title Tissue paper and tissue products: Part 1: General guidance on terms; Part 3: Determination of thickness, bulking thickness and apparent bulk den
25、sity; Part 4: Determination of tensile strength, stretch at break and tensile energy absorption; Part 5: Determination of wet tensile strength; Part 6: Determination of grammage; Part 7: Determination of optical properties Measurement of brightness and colour; Part 8: Water-absorption time and water
26、-absorption capacity; basket-immersion test method; Part 9: Determination of ball burst strength; Part 11: Determination of wet ball burst strength; Part 12: Determination of tensile strength of perforated lines Calculation of perforation efficiency.EN ISO IntroductionThis part of ISO 12625 is appli
27、cable to tissue papers and tissue products. In principle, application to other types of paper is possible, but is not covered by this part of ISO 12625.DIN EN ISO 12625-11:2013-04 EN ISO 12625-11:2012 (E) 41 ScopeThis part of ISO 12625 specifies a test method for the determination of the resistance
28、to mechanical penetration (ball burst strength procedure) of tissue paper and tissue products after wetting.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, t
29、he latest edition of the referenced document (including any amendments) applies.ISO 186, Paper and board Sampling to determine average qualityISO 187, Paper, board and pulps Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samplesISO 75
30、00-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring systemISO 12625-1, Tissue paper and tissue products Part 1: General guidance on termsISO 12625-9:2005, Tissue paper and tissue pr
31、oducts Part 9: Determination of ball burst strength3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 12625-1 and the following apply.3.1bursting forceFDmaximum force, that a test piece of a tissue paper or tissue product can withstand under the test con
32、ditions, applied at a 90 angle to its surfaceISO 12625-9:2005NOTE 1 The bursting force is expressed in millinewtons (mN).NOTE 2 ISO 12625-9:2005 measures the bursting force of the test piece in the dry condition and uses an inner clamping diameter of 89 mm. At the next revision it is intended to cha
33、nge this inner diameter to 50 mm.3.2wet bursting forceFWmaximum force, that a wetted test piece of a tissue paper or tissue product can withstand under the test conditions, applied at a 90 angle to its surfaceNOTE The wet bursting force is expressed in millinewtons (mN).DIN EN ISO 12625-11:2013-04 E
34、N ISO 12625-11:2012 (E) 5 3.3wet burst indexXWwet bursting force of the tissue paper or tissue product divided by the grammage of the conditioned sample determined by the standard method of testNOTE The wet burst index is expressed in millinewton square metre per gram (mN m2/g).3.4wet burst retentio
35、nWRratio, expressed as a percentage, of the burst strength of the wet tissue paper or wet tissue product to the burst strength of the same tissue paper or tissue product in the dry and conditioned stateNOTE This definition is similar to the definition of wet tensile strength retention; see ISO 12625
36、-5:2005.4 PrincipleA test piece of tissue paper or tissue product is rigidly clamped at the periphery between two concentric annular rings, then wetted with deionized water and submitted to a perpendicular force until penetration, applied by a ball of a hard, non-deformable, material moving at a con
37、stant speed.5 Reagents5.1 Deionized water, with a conductivity 0,25 mS/m at 25C, in accordance with ISO 14487. The water temperature should be maintained during the test at the temperature used for conditioning and testing.6 Apparatus6.1 GeneralThe apparatus shall be placed on a horizontal surface,
38、free from externally induced vibrations.6.2 Clamping systemThe clamping system is designed to clamp the test piece firmly and uniformly between two concentric annular plane, parallel surfaces. The clamping rings can be activated mechanically or pneumatically.The clamping pressure shall be sufficient
39、 to prevent slippage during the test, without damaging the test pieces.The clamping surfaces of the clamping rings are coated with a commercial grade of a band made of rubber material, typically 1,0 mm to 2,0 mm thick, having an IRHD hardness (International Rubber Hardness Degree) of 70 IRHD to 85 I
40、RHD. The inner edges of the coated band shall be coincident with the inner diameter of the clamping rings and be at least 12,5 mm wide. The internal diameter of the two concentric rings shall be (50,0 0,2) mm. For an example of a pneumatic clamping system, see Figure 1.DIN EN ISO 12625-11:2013-04 EN
41、 ISO 12625-11:2012 (E) 6Legend1 load cell2 travel3 stationary ring4 suitable band made of rubber (e. g. chloroprene rubber)5 movable centre-ring6 pneumatic cylinder7 probeaPolished ball.Figure 1 Principle of the clamping system, pneumatic fixture6.3 Penetration systemThe penetration (burst) system s
42、hall consist of a spherical ball attached to a rod designed to transmit the force applied to the ball. The penetration ball shall be made of highly polished stainless steel and shall have the following dimensions: diameter: (16 0,2 mm); sphericity: better than 1 m.The penetration ball shall be centr
43、ed with the annular clamps. It is permanently attached to the end of a solid hard rod designed to transmit the force applied to the ball.6.4 Force measuring systemThe force measuring system shall measure the loads with a class of machine range of 1 or better and shall be calibrated and verified in a
44、ccordance with the requirements of ISO 7500-1.The load cell system shall have a measuring range of 0,1 N to 15 N.The readout system shall have a display that shows the maximum force at burst.DIN EN ISO 12625-11:2013-04 EN ISO 12625-11:2012 (E) 7 6.5 Drive mechanismThe drive mechanism shall consist o
45、f a static uniaxial testing machine with a suitable mechanism for moving either the clamping system or the penetration system so that they approach each other at a constant rate in a direction perpendicular to the clamping system plane.The penetration test speed shall be (125 5) mm/min.6.6 Water app
46、lication systemA water application system shall be either a pipette or any automatic volumetric water application system like dosimat 1)with a volume accuracy of (5,0 0,1) ml and capable of delivering 5 ml water within 3 s to 4 s.7 SamplingIf the tests are being made to evaluate a lot, the sample sh
47、all be selected in accordance with ISO 186.If the tests are being made on another type of sample, make sure that the specimens taken are representative of the sample.When sampling finished roll products, possible presence of adhesives or mechanical damage shall be avoided. Therefore, exclude at leas
48、t the first and the last six windings of the roll.8 Conditioning8.1 GeneralCondition the samples according to ISO 187, unless otherwise agreed between the parties concerned, and keep them in the standard atmosphere throughout the test.8.2 Rapid ageing (curing)The wet strength of tissue paper is freq
49、uently enhanced by addition of a wet strength agent. A rapid ageing with heat is frequently used to develop the maximum wet strength that a tissue paper or tissue product will achieve after a period of natural ageing at ambient conditions which may vary from a few days to several weeks, depending on the wet strength agent u
