BS EN ISO 17230-2011 Leather Physical and mechanical tests Determination of water penetration pressure《皮革制品 物理和机械试验 渗水压力测定》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 17230:2011Leather Physical andmechanical tests Determination of waterpenetration pressure (ISO17230:2006)BS EN ISO 17230:2011 BRITISH STANDARDNational forewordThis Brit

2、ish Standard is the UK implementation of EN ISO17230:2011. It is identical to ISO 17230:2006. It supersedes BS EN14289:2003 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee TCI/69, Footwear, leather and coated fabrics.A list of organizations represented

3、on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 72291 2ICS 59.140.30Compliance with a British Standard cannot confer immunity

4、fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2011.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 17230 September 2011 ICS 59.140.30 Supersedes

5、 EN 14289:2003English Version Leather - Physical and mechanical tests - Determination of water penetration pressure (ISO 17230:2006) Cuir - Essais physiques et mcaniques - Dtermination de la pression de pntration de leau (ISO 17230:2006) Leder - Physikalische und mechanische Prfungen - Bestimmung de

6、s Wasserdurchlssigkeitsdruckes (ISO 17230:2006) This European Standard was approved by CEN on 18 August 2011. 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 alter

7、ation. 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, French, German). A version in any other language made

8、 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, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estoni

9、a, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPI

10、SCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 17230:2011: EBS EN ISO 17230:2011EN ISO 17230:2011 (E) 3 Foreword The text of ISO 17230:2006 has

11、 been prepared by International Union of Leather Technologists and Chemists Societies and has been taken over as EN ISO 17230:2011 by Technical Committee CEN/TC 289 “Leather” the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by p

12、ublication of an identical text or by endorsement, at the latest by March 2012, and conflicting national standards shall be withdrawn at the latest by March 2012. 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

13、shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14289:2003. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bul

14、garia, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notic

15、e The text of ISO 17230:2006 has been approved by CEN as a EN ISO 17230:2011 without any modification. BS EN ISO 17230:2011ISO 17230:2006(E) IULTCS/IUP 45:2006(E) ISO 2006 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national s

16、tandards bodies (ISO member bodies). 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

17、organizations, governmental and 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. International Standards are drafted in accordance with the rules gi

18、ven in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least

19、 75 % of the member bodies casting a vote. Attention is drawn 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. ISO 17230 was prepared by the Physical Test Commission of

20、the International Union of Leather Technologists and Chemists Societies (IUP Commission, IULTCS) in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, the secretariat of which is held by UNI. It was published as EN 14289. It is based on IUP 4

21、5 published in J. Soc. Leather Tech. Chem., 86 (7), p. 345, 2002, and declared an official method of the IULTCS in May 2003. IULTCS, originally formed in 1897, is a world-wide organization of professional leather societies to further the advancement of leather science and technology. IULTCS has thre

22、e Commissions, which are responsible for establishing international methods for the sampling and testing of leather. ISO recognizes IULTCS as an international standardizing body for the preparation of test methods for leather. BS EN ISO 17230:2011BS EN ISO 17230:2011INTERNATIONAL STANDARD ISO 17230:

23、2006(E)IULTCS/IUP 45:2006(E) ISO 2006 All rights reserved 1Leather Physical and mechanical tests Determination of water penetration pressure 1 Scope This International Standard describes a method for determining the water penetration pressure of leather. 2 Normative references The following referenc

24、ed 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 2418, Leather Chemical, physical and mechanical and fastness tests

25、Sampling location ISO 2419, Leather Physical and mechanical tests Sample preparation and conditioning ISO 3696, Water for analytical laboratory use Specifications and test methods 3 Principle A sample of leather is clamped over a container of water with the surface of the leather in contact with the

26、 water. The water pressure is raised at a specified rate and the pressure required to force droplets of water through the leather is measured. 4 Apparatus 4.1 Cup, in the form of a short non-corrosive metal circular cylinder, internal diameter 40,0 mm 0,2 mm with the open end uppermost. 4.2 Annular

27、clamp, internal diameter 40,0 mm 0,2 mm, capable of clamping the leather test piece across the cup (4.1) without slippage when a pressure of 65 kPa is applied. 4.3 Stiff wire gauze, with eight holes per 25 mm, circular in shape and held in place around the circumference by the annular clamp (4.2), o

28、r welded into position. 4.4 Means of increasing pressure, such that the water in the cup is subjected to a uniform increase in pressure of 3 kPa/min 0,3 kPa/min to a maximum pressure of 65 kPa. 4.5 Distilled or deionized water, conforming to the requirements of grade 3 of ISO 3696. 4.6 Press knife,

29、the inner surface of which is a right angled circular cylinder, capable of cutting a circular test piece which can be clamped between the cup (4.1) and annular clamp (4.2) and conforming to ISO 2419. NOTE To preserve the area of a test skin or hide, the whole skin or hide may be placed on the test a

30、pparatus and the press knife becomes optional. BS EN ISO 17230:2011ISO 17230:2006(E) IULTCS/IUP 45:2006(E) 2 ISO 2006 All rights reserved5 Sampling and sample preparation 5.1 Sample in accordance with ISO 2418. Cut three test pieces by applying the press knife (4.6) to the grain surface. NOTE If the

31、re is a requirement for more than two hides or skins to be tested in one batch, then only one sample need be taken from each hide or skin, provided that the overall total is not less than three test pieces. 5.2 Carry out all further steps at 20 C 2 C or 23 C 2 C. There is no need to condition test p

32、ieces nor is there any need for humidity control. 6 Procedure 6.1 Fill the cup (4.1) with distilled or deionized water (4.5) at the controlled temperature (5.2). 6.2 Place the leather over the cup with the surface which would be wetted in wear in contact with the water. Place a stiff gauze over the

33、leather and clamp in position. NOTE The stiff gauze prevents the leather from becoming distended during the test. 6.3 Apply pressure to the water, increasing the pressure at a uniform rate of 3,0 kPa/min 0,3 kPa/min until completion of the test. 6.4 Observe the surface of the leather for the appeara

34、nce of globules of water which have been forced through the leather and note the pressure when three such globules are visible. This is the water penetration pressure. NOTE 1 The appearance of the third droplet is taken as the end point rather than the first so that the result will not be duly influ

35、enced by the presence of a few capillaries of slightly greater dimensions than the remainder. NOTE 2 If the leather is not sufficiently waterproof to be assessed by this test, then failure will be as damp patches rather than discrete droplets. These results are less reliable. If the leather fails at

36、 a pressure of less than 2,5 kPa, then these low pressures are of little value in discriminating between samples. 6.5 If the third droplet has not appeared when a pressure of 65 kPa is reached, terminate the test. 7 Expression of results 7.1 Express the water penetration pressure to the nearest 0,1

37、kPa. If the leather has not failed at a pressure of 65 kPa, report the water penetration pressure as “greater than 65 kPa”. 7.2 If the leather fails because the water penetrates as damp patches, include this as a comment on the test report. NOTE Penetration pressures are sometimes expressed as “mmHg

38、” or “cmHg”. If the results are to be expressed in these units, then 1 kPa = 7,5 mmHg = 0,75 cmHg. BS EN ISO 17230:2011ISO 17230:2006(E) IULTCS/IUP 45:2006(E) ISO 2006 All rights reserved 38 Test report The test report shall include the following for each test piece: a) a reference to this Internati

39、onal Standard, i.e. ISO 17230:2006; b) the water penetration pressure, in kPa; c) the mode of failure if this is by formation of damp patches; d) the temperature at which the test was carried out (i.e. 20 C 2 C or 23 C 2 C); e) any deviations from the method specified in this International Standard;

40、 f) full details for identification of the sample and any deviation from ISO 2418 with respect to sampling. BS EN ISO 17230:2011ISO 17230:2006(E) IULTCS/IUP 45:2006(E) 4 ISO 2006 All rights reservedAnnex A (informative) Source of apparatus One example of a suitable product available commercially is

41、given below. “R & B Hydrostatic Triple Head Tester”1)manufactured by: R & B Instruments, Unit 3a, Farnley Low Mills, Bangor Terrace, Leeds LS12 5PS, UK. 1) “R & B Hydrostatic Triple Head Tester” is an example of a suitable product available commercially. This information is given for the convenience

42、 of users of this International Standard and does not constitute an endorsement by ISO of this product. BS EN ISO 17230:2011This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-related pu

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