EN ISO 12625-5-2016 en Tissue paper and tissue products - Part 5 Determination of wet tensile strength《薄纸和薄纸产品-第5部分 湿抗张强度的测定(ISO 12625-5 2016)》.pdf

1、BS EN ISO 12625-5:2016Tissue paper and tissueproductsPart 5: Determination of wet tensilestrength (ISO 12625-5:2016)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 12625-5:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation

2、of EN ISO 12625-5:2016. It supersedes BS EN ISO 12625-5:2005 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PAI/11, Methods of test for paper, board and pulps.A list of organizations represented on this committee can be obtained on request to its secr

3、etary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017. Published by BSI Standards Limited 2017ISBN 978 0 580 90264 2 ICS 85.080.20 Compliance with a British Standard can

4、not confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2017. Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12625-5 Decem

5、ber 2016 ICS 85.060 Supersedes EN ISO 12625-5:2005English Version Tissue paper and tissue products - Part 5: Determination of wet tensile strength (ISO 12625-5:2016) Papier tissue et produits tissue - Partie 5: Dtermination de la rsistance la rupture par traction ltat humide (ISO 12625-5:2016) Tissu

6、e-Papier und Tissue-Produkte - Teil 5: Bestimmung der breitenbezogenen Nassbruchkraft (ISO 12625-5:2016) This European Standard was approved by CEN on 21 November 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European S

7、tandard 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 (Eng

8、lish, 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-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium,

9、 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, Switzerlan

10、d, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Mem

11、bers. Ref. No. EN ISO 12625-5:2016 EBS EN ISO 12625-5:2016EN ISO 12625-5:2016 (E) 3 European foreword This document (EN ISO 12625-5:2016) has been prepared by Technical Committee ISO/TC 6 “Paper, board and pulps“ in collaboration with Technical Committee CEN/TC 172 “Pulp, paper and board” the secret

12、ariat of which is held by DIN. 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 June 2017, and conflicting national standards shall be withdrawn at the latest by June 2017. Attention is drawn to th

13、e 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. This document supersedes EN ISO 12625-5:2005. According to the CEN-CENELEC Internal Regulations, the national

14、standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuani

15、a, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 12625-5:2016 has been approved by CEN as EN ISO 12625-5:2016 without any modification. BS EN ISO 12625-5:2016ISO 126

16、25-5:2016(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 25 Apparatus . 26 Conditioning 57 Preparation 57.1 General . 57.2 Accelerated ageing (curing) . 57.3 Dimensions . 67.3.1 Vertical testing apparatus 67.3.2 Horizontal testing apparatus 67.4 Number of test

17、 pieces . 68 Procedure. 68.1 Calibration and adjustment of the testing apparatus 68.2 Vertical test method 78.2.1 Mounting the Finch Cup soaking device 78.2.2 Measurement 78.3 Horizontal test method 88.3.1 Measurement 89 Calculation 99.1 General . 99.2 Wet tensile strength 99.3 Wet tensile strength

18、retention 1010 Test report 10Annex A (informative) Precision 11Bibliography .15 ISO 2016 All rights reserved iiiContents PageBS EN ISO 12625-5:2016ISO 12625-5:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bo

19、dies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental an

20、d non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are de

21、scribed in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn

22、 to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on th

23、e ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,

24、 as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 172, P

25、ulp, paper and board, in collaboration with ISO Technical Committee TC 6, Paper, board and pulps, Subcommittee SC 2, Test methods and quality specifications for paper and board, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).This second edition cance

26、ls and replaces the first edition (ISO 12625-5:2005), which has been technically revised with the following changes:a) in Clause 7, a more detailed description of the preparation of the test pieces was included;b) in Clause 8, the procedure for measurement was clarified;c) in Clause 10, additional i

27、nformation is to be included in the test report;d) more detailed precision data in Annex A;e) this document has been editorially updated.A list of all parts in the ISO 12625 series can be found on the ISO website.iv ISO 2016 All rights reservedBS EN ISO 12625-5:2016INTERNATIONAL STANDARD ISO 12625-5

28、:2016(E)Tissue paper and tissue products Part 5: Determination of wet tensile strength1 ScopeThis document specifies a test method for the determination of the wet tensile strength of tissue paper and tissue products after soaking with water, using a tensile-strength-testing apparatus operating with

29、 a constant rate of elongation.Currently, two types of tensile-strength-testing apparatus are commercially available, one where the test piece is positioned vertically and, for the other, horizontally. This document applies for both. For vertical tensile-strength-testing apparatus, a device which is

30、 held in the lower grip of the tensile-strength-testing apparatus, called a Finch Cup, is used to achieve the wetting. For horizontal tensile-strength-testing apparatus, the soaking device is placed between the clamps.In cases where impurities and contraries have to be determined, ISO 157556applies

31、for these detections in tissue paper and tissue products.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references,

32、the 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 1

33、924-2, Paper and board Determination of tensile properties Part 2: Constant rate of elongation method (20 mm/min)ISO 7500-1, Metallic materials Calibration and verification of static uniaxial testing machines Part 1: Tension/compression testing machines Calibration and verification of the force-meas

34、uring system3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 12625-1 and the following apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/

35、 ISO Online browsing platform: available at http:/www.iso.org/obp3.1wet tensile strengthmaximum tensile force per unit width that a test piece soaked with water will withstand before breaking in a tensile testNote 1 to entry: The wet tensile strength is expressed in newtons per metre (N/m). ISO 2016

36、 All rights reserved 1BS EN ISO 12625-5:2016ISO 12625-5:2016(E)3.2wet-tensile-strength retentionratio, expressed as a percentage, of the tensile strength of the wet test piece to the tensile strength of a different test piece from the same sample in the dry, conditioned stateNote 1 to entry: Accordi

37、ng to ISO 187.4 PrincipleA test piece of tissue paper or tissue product of given dimensions, soaked in water for a given period of time under specified conditions, is stretched (elongated) to break at a constant rate of elongation, using a tensile-strength-testing apparatus that measures and records

38、 the tensile force as a function of the elongation of the test piece.The test can be carried out by a vertical or a horizontal tensile-strength-testing apparatus.In order to wet the test pieces for a vertical tensile-strength-testing apparatus, a device called a Finch Cup, which is held to the lower

39、 clamp, is used. For a horizontal tensile-strength-testing apparatus, a soaking cup is inserted between the clamps.From the wet tensile strength and the tensile strength of the same sample in the dry conditioned state, the wet-tensile-strength retention can be calculated.Precision data are available

40、 in Annex A.5 Apparatus5.1 Vertical tensile-strength-testing apparatus5.1.1 Tensile-strength-testing apparatusThe tensile-strength-testing apparatus shall be in accordance with ISO 1924-2. It is capable of stretching a test piece of tissue paper or tissue product of given dimensions at a constant ra

41、te of elongation of (50 2) mm/min, and recording the tensile force as a function of elongation on a strip chart recorder or any equivalent device.The force-measuring system shall measure loads with an accuracy of 1 % of the reading or 0,1 N, whichever is greater, and shall be calibrated and verified

42、 according to the requirements of ISO 7500-1.5.1.2 Tensile-testing apparatus clampsThe tensile-strength-testing apparatus (5.1.1) shall have an upper clamp with a minimum of 50 mm width, for holding both ends of the test piece firmly and without slippage. To avoid damaging the test pieces, the clamp

43、 surfaces that touch the pieces should be smooth and have rounded edges, i.e. free from burrs. The lower clamp shall be designed to grip the Finch Cup soaking device (5.1.3) firmly. The clamps shall have means for adjusting the clamping force.During the test, the upper clamping line and the Finch Cu

44、p soaking device (5.1.3) rod shall be parallel to each other. They shall also be perpendicular to the direction of the applied tensile force and to the length axis of the test piece.The distance between A and B is the total span length and shall be (100 1) mm. The distance between A and B divided by

45、 two is the test span length and shall be (50 1) mm.2 ISO 2016 All rights reservedBS EN ISO 12625-5:2016ISO 12625-5:2016(E)Dimensions in millimetresKeyA clamping line on one end of the test pieceB clamping line on the other end of the test pieceFigure 1 Positioning of a test piece5.1.3 Finch Cup soa

46、king deviceA Finch Cup soaking device (see Figure 2) consists of a support system that holds a horizontal cylindrical rod of (5,0 0,1) mm diameter, and approximately 60 mm length, and a water container.The water container shall be constructed such that it can be moved vertically and locked in a rais

47、ed position. In the locked raised position, the water in the container shall completely surround the cylindrical rod which is thereby immersed in the liquid to a depth of (20 1) mm, as indicated in Figure 2.Projecting downwards, from the bottom of the device, is a rigid metal tongue by means of whic

48、h the device can be held in the lower clamp of the tensile-strength-testing apparatus. ISO 2016 All rights reserved 3BS EN ISO 12625-5:2016ISO 12625-5:2016(E)Dimensions in millimetresKey1 liquid level mark2 positioning groove3 rod, d (5,0 0,1) mm4 water container (movable)5 tongueFigure 2 Finch Cup

49、soaking device (example)5.2 Horizontal tensile-strength-testing apparatus5.2.1 Tensile-strength-testing apparatusThe tensile-strength-testing apparatus shall be in accordance with ISO 1924-2. It is capable of stretching a test piece of tissue paper or tissue product of given dimensions at a constant rate of elongation of (50 2) mm/min, and recording the tensile force as a function of elongation on a strip chart or any equivalent device.The force-measuring system shall measure loads with an accuracy of 1 % of the r