1、BSI Standards PublicationBS EN ISO 17229:2016Leather Physical andmechanical tests Determination of water vapourabsorptionBS EN ISO 17229:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 17229:2016. It supersedes BS EN ISO 17229:2002 which is withdrawn. T
2、he UK participation in its preparation was entrusted to Technical Committee TCI/69, Footwear, leather and coated fabrics.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a co
3、ntract. Users are responsible for its correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016ISBN 978 0 580 90473 8 ICS 59.140.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under th
4、e authority of the Standards Policy and Strategy Committee on 31 March 2016.Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 17229 March 2016 ICS 59.140.30 Supersedes EN ISO 17229:2002English Version Leather - Physical and mechan
5、ical tests - Determination of water vapour absorption (ISO 17229:2016) Cuir - Essais physiques et mcaniques - Dtermination de labsorption de vapeur deau (ISO 17229:2016) Leder - Physikalische und mechanische Prfungen - Bestimmung der Wasserdampfaufnahme (ISO 17229:2016) This European Standard was ap
6、proved by CEN on 23 January 2016. 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 natio
7、nal 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 by translation under the responsibility of a CEN member into its own langua
8、ge 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, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
9、Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-C
10、ENELEC 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 Members. Ref. No. EN ISO 17229:2016 EBS EN ISO 17229:2016EN ISO 17229:2016 (E) 3 European foreword This document (EN ISO 17229:2016) has be
11、en prepared by Technical Committee IULTCS “InternationalUnion of Leather Technologists and Chemists Societies” in collaboration with Technical CommitteeCEN/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 pub
12、lication of anidentical text or by endorsement, at the latest by September 2016, and conflicting national standardsshall be withdrawn at the latest by September 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject ofpatent rights. CEN and/or CENEL
13、EC shall not be held responsible for identifying any or all such patentrights. This document supersedes EN ISO 17229:2002. According to the CEN-CENELEC Internal Regulations, the national standards organizations of thefollowing countries are bound to implement this European Standard: Austria, Belgium
14、, 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, Switzerland,
15、Turkey and the United Kingdom. Endorsement notice The text of ISO 17229:2016 has been approved by CEN as EN ISO 17229:2016 without any modification. BS EN ISO 17229:2016ISO 17229:2016(E)IULTCS/IUP 42:2016(E)Foreword iv1 Scope . 12 Normative references 13 Principle 14 Apparatus . 15 Sampling and samp
16、le preparation 26 Procedure. 27 Expression of results 28 Test report . 2Annex A (informative) Water vapour number 4Bibliography 5 ISO 2016 All rights reserved iiiContents PageBS EN ISO 17229:2016ISO 17229:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federati
17、on of national standards 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
18、. International 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.The procedures used to develop this document and tho
19、se intended for its further maintenance are described 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 (
20、see www.iso.org/directives).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. Details of any patent rights identified during the development of the doc
21、ument will be in the Introduction and/or on the 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
22、 expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationISO 17229 was prepared by the Physical Test Commission of the International Union of Le
23、ather 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, in accordance with the Agreement on technical cooperation between ISO and CEN (
24、Vienna Agreement).It is based on IUP 42 which was published in J. Soc. Leather Tech. Chem. 84, p. 395, (2000) and confirmed as an official method of the IULTCS in March 2001.IULTCS, originally formed in 1897, is a world-wide organization of professional leather societies to further the advancement o
25、f leather science and technology. IULTCS has three 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.This second edition cance
26、ls and replaces the first edition (ISO 17229:2002), of which it constitutes a minor revision to align item c) of Clause 8 with ISO 2419:2012.IULTCS/IUP 42:2016(E)iv ISO 2016 All rights reservedBS EN ISO 17229:2016INTERNATIONAL STANDARDISO 17229:2016(E)IULTCS/IUP 42:2016(E)Leather Physical and mechan
27、ical tests Determination of water vapour absorption1 ScopeThis International Standard specifies a method for determining the water vapour absorption of leather. The method is applicable for all leathers but is particularly relevant for leathers intended for footwear uppers and linings.2 Normative re
28、ferencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
29、ISO 2418, Leather Chemical, physical and mechanical and fastness tests Sampling locationISO 2419, Leather Physical and mechanical tests Sample preparation and conditioningISO 3696, Water for analytical laboratory use Specification and test methods3 PrincipleThe test piece and an impermeable material
30、 are clamped over the opening of a metal container containing 50 ml of water for a specified time. The water vapour absorption of the test piece is determined by the increase in mass.4 Apparatus4.1 Cylindrical metal or glass container, with internal diameter of 35 mm 0,5 mm, internal depth 104 mm 1
31、mm and an external diameter at the top opening of at least 55 mm, fitted with a metal ring or lid which can be securely clamped to the cylindrical metal container.4.2 Balance, weighing to 0,001 g.4.3 Stop clock, reading to 1 min.4.4 Vernier callipers, reading to 0,1 mm.4.5 Disc of impermeable materi
32、al, for example rubber or metal, with the same diameter as the test piece.4.6 Press knife, the inner wall of which is a right angled circular cylinder of diameter 43 mm 1 mm as specified in ISO 2419.4.7 Distilled or deionized water, conforming to the requirements of grade 3 of ISO 3696. ISO 2016 All
33、 rights reserved 1BS EN ISO 17229:2016ISO 17229:2016(E)5 Sampling and sample preparation5.1 Sample in accordance with ISO 2418. From the sample, cut three circular test pieces by applying the press knife to the grain surface, if distinguishable.If there is a requirement for more than two hides or sk
34、ins to be tested in one batch, then only one test piece need be taken from each hide or skin, provided that the overall total is not less than three test pieces.5.2 Condition the test piece in accordance with ISO 2419.NOTE Results will vary depending on the conditioning method used.5.3 Weigh the tes
35、t piece to the nearest 0,001 g and record its mass as m1.6 Procedure6.1 Using vernier callipers, measure the internal diameter of the cylindrical container (to the nearest 0,1 mm) in two mutually perpendicular directions and calculate the mean diameter.6.2 Pour 50 ml 5 ml of distilled or deionized w
36、ater at 20 C 2 C or 23 C 2 C into the cylindrical metal container (4.1).6.3 Place the test piece centrally over the container with the side which would be exposed to the higher humidity in use facing downwards. Place a disc of impermeable material over the test piece and clamp the upper ring or lid
37、in place taking care not to splash water onto the test piece.6.4 Keep the container at a temperature of 20 C 2 C or 23 C 2 C for 8 h 0,1 h.6.5 Remove the test piece, weigh immediately to the nearest 0,001 g and record its mass as m2.6.6 If the test piece is splashed with water discard it and repeat
38、the test with a fresh test piece.7 Expression of resultsCalculate the water vapour absorption, Awv, in milligrams per square centimetre, using Formula (1):AmmdWV=()4102152pi(1)wherem1is the initial mass of the test piece, in grams;m2is the final mass of the test piece, in grams;d is the internal dia
39、meter of the cylindrical container, in millimetres.The calculation of the water vapour number is given in informative Annex A.8 Test reportThe test report shall include the following:a) a reference to this International Standard, i.e. ISO 17229;IULTCS/IUP 42:2016(E)2 ISO 2016 All rights reservedBS E
40、N ISO 17229:2016ISO 17229:2016(E)b) the mean water vapour absorption, Awv, in milligrams per square centimetre, expressed to one decimal place;c) the standard atmosphere used for conditioning and testing as given in ISO 2419;d) any deviations from the method specified in this International Standard;
41、e) full details for identification of the sample and any deviation from ISO 2418 with respect to sampling.IULTCS/IUP 42:2016(E) ISO 2016 All rights reserved 3BS EN ISO 17229:2016ISO 17229:2016(E)Annex A (informative) Water vapour numberIt is common practice to combine the results of water vapour per
42、meability, Pwv, as determined in ISO 14268, and water vapour absorption, Awv, as determined in this International Standard, to determine the water vapour number, Wpn.Calculate the water vapour number, Wpn, in milligrams per square centimetre 8 h, using Formula (A.1):WtPApn WV WV= + (A.1)wheret is 8
43、h;Pwvis the water vapour permeability;Awvis the water vapour absorption.IULTCS/IUP 42:2016(E)4 ISO 2016 All rights reservedBS EN ISO 17229:2016ISO 17229:2016(E)Bibliography1 ISO 14268, Leather Physical and mechanical tests Determination of water vapour permeabilityIULTCS/IUP 42:2016(E) ISO 2016 All
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