1、BSI Standards PublicationBS EN ISO 3380:2015Leather Physical andmechanical tests Determination of shrinkage temperature up to 100 CBS EN ISO 3380:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 3380:2015. It supersedes BS EN ISO 3380:2002 which is withd
2、rawn.The 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 o
3、f a contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 78780 5 ICS 59.140.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published und
4、er the authority of the Standards Policy and Strategy Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3380 September 2015 ICS 59.140.30 Supersedes EN ISO 3380:2002English Version Leather
5、 - Physical and mechanical tests - Determination of shrinkage temperature up to 100 C (ISO 3380:2015) Cuir - Essais physiques et mcaniques - Dtermination de la temprature de rtrcissement jusqu 100 C (ISO 3380:2015) Leder - Physikalische und mechanische Prfungen - Bestimmung der Schrumpfungstemperatu
6、r bis 100 C (ISO 3380:2015) This European Standard was approved by CEN on 8 August 2015. 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 lis
7、ts 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 by translation under
8、 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, Estonia, Finland, Former Yu
9、goslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROP
10、EN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 3380:2015 EBS EN ISO 3380:2015EN ISO 3380:2015 (E) 3 Europ
11、ean foreword This document (EN ISO 3380:2015) has been prepared by Technical Committee CEN/TC 289 “Leather”, the secretariat of which is held by UNI, in collaboration with Technical Committee IULTCS “International Union of Leather Technologists and Chemists Societies”. This European Standard shall b
12、e given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2016, and conflicting national standards shall be withdrawn at the latest by March 2016. This document supersedes EN ISO 3380:2002. Attention is drawn to the possibility th
13、at 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. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound t
14、o 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, R
15、omania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 3380:2015 has been approved by CEN as EN ISO 3380:2015 without any modification.BS EN ISO 3380:2015ISO 3380:2015(E)IULTCS/IUP 16:2015(E)Foreword iv1 Scope . 12 Normative referenc
16、es 13 Principle 14 Apparatus . 15 Sampling and sample preparation 26 Procedure. 37 Test report . 3Annex A (informative) Sources of test apparatus 4 ISO 2015 All rights reserved iiiContents PageBS EN ISO 3380:2015ISO 3380:2015(E)ForewordISO (the International Organization for Standardization) is a wo
17、rldwide federation 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 o
18、n that committee. 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
19、document and those 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 Dire
20、ctives, Part 2 (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 developmen
21、t of the document 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 specif
22、ic terms and 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 information.ISO 3380 was prepared by the Physical Test Commission of the International
23、 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, in accordance with the Agreement on technical cooperation between I
24、SO and CEN (Vienna Agreement). It is based on IUP 16 originally published in J. Soc. Leather Trades Chemists 47, p. 122, (1963) and an updated version published in J. Soc. Leather Tech. Chem. 84, p. 359, (2000).IULTCS, originally formed in 1897, is a world-wide organization of professional leather s
25、ocieties to further the advancement of 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
26、for leather.This third edition cancels and replaces the second edition (ISO 3380:2002), 6.5 of which has been technically revised.IULTCS/IUP 16:2015(E)iv ISO 2015 All rights reservedBS EN ISO 3380:2015INTERNATIONAL STANDARDISO 3380:2015(E)IULTCS/IUP 16:2015(E)Leather Physical and mechanical tests De
27、termination of shrinkage temperature up to 100 C1 ScopeThis International Standard specifies a method for determination of the shrinkage temperature of leather up to 100 C. It is applicable to all leathers.2 Normative referencesThe following documents, in whole or in part, are normatively referenced
28、 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.ISO 2418, Leather Chemical, physical and mechanical and fastness tests Sampling
29、locationISO 2589, Leather Physical and mechanical tests Determination of thicknessISO 3696, Water for analytical laboratory use Specification and test methods3 PrincipleThe test piece is heated at a specified rate in water until a sudden shrinkage occurs.4 Apparatus4.1 Schematic layout of a suitable
30、 instrument is shown in Figure 1. The instrument should include the following parts.4.1.1 Vessel, minimum volume of 500 ml and minimum working depth of 110 mm. The vessel may be pressurized to operate at temperatures in excess of 100 C.4.1.2 Fixed test piece holder, for example, a pin or clip, 30 mm
31、 5 mm above the base of the vessel.4.1.3 Moveable test piece holder, for example, a hook or clip. One end is attached to the top of the test piece. The other end is attached to a thread which passes over a pulley and terminates in a mass 3 g heavier than the moveable holder.4.1.4 Pointer, with means
32、 of monitoring its movement. In the instrument shown, the relative dimensions of the pulley and pointer shall be such that any movement of the moveable holder (4.1.3) is magnified by a factor of at least five.4.1.5 Temperature measuring device, graduated to 1 C and shown to be accurate to 0,5 C with
33、 the sensor placed close to the centre of the test piece and a working range suitable for the sample under test.4.1.6 Distilled or de-ionized water, conforming to the requirements grade 3 of ISO 3696.4.1.7 Heater, capable of heating the vessel filled to its working depth with distilled or de-ionized
34、 water at a rate of 2 C/min 0,2 C/min. ISO 2015 All rights reserved 1BS EN ISO 3380:2015ISO 3380:2015(E)4.1.8 Stirrer, capable of sufficiently agitating the water in the vessel such that the temperatures at the top and bottom of the test piece do not differ by more than 1 C.Key1 pulley 5 fixed test
35、piece holder2 3 g force 6 vessel3 pointer 7 test piece4 temperature measuring device (thermometer shown) 8 movable test piece holderFigure 1 Shrinkage temperature apparatus (schematic)4.2 Thickness gauge, conforming to the requirements of ISO 2589.4.3 Desiccator or other vessel which can be evacuate
36、d.4.4 Vacuum pump, capable of reducing the absolute pressure in the desiccator to less than 4 kPa within 2 min.4.5 Glass test tube, with internal diameter of 10 mm 2 mm and minimum height of 100 mm.5 Sampling and sample preparation5.1 Sample in accordance with ISO 2418.5.2 Determine the thickness of
37、 the sample in accordance with ISO 2589.5.3 Cut rectangular test pieces 50 mm 2 mm 3,0 mm 0,2 mm if the thickness of the sample is 3 mm or less. If the thickness is greater than 3 mm, cut rectangular test pieces 50 mm 2 mm 2,0 mm 0,2 mm. Prepare two samples parallel to the backbone and two samples p
38、erpendicular to the backbone.NOTE 1 If there is a requirement for more than two hides or skins to be tested in one batch, then only one sample in each direction needs to be taken from each hide or skin, provided that the overall total is not less than four test pieces in each direction.IULTCS/IUP 16
39、:2015(E)2 ISO 2015 All rights reservedBS EN ISO 3380:2015ISO 3380:2015(E)NOTE 2 There is no requirement to condition the sample for this test or to carry out the test under standard conditions.NOTE 3 Other dimensions are used if it is shown that they do not affect the results.6 ProcedureFor dry test
40、 samples, carry out 6.1 to 6.3. For wet test samples, omit 6.1 to 6.3.6.1 Put 5,5 ml 0,5 ml distilled or de-ionized water into the glass tube (4.5) and immerse the test piece in it, using a glass rod to keep in immersed, if necessary.6.2 Stand the tube in the desiccator (4.3), supporting it in an up
41、right position, if necessary. Evacuate the desiccator and maintain the absolute pressure in it below 4 kPa for 1 min to 2 min.6.3 Allow air to enter the desiccator and keep the test piece immersed for a minimum of 1 h and a maximum of 6 h.6.4 Attach an end of the test piece to the fixed test piece h
42、older (4.1.2) and the other end to the moveable holder (4.1.3). Adjust the thread, pulley, and mass so that the test piece is held under the tension of the mass.6.5 Place sufficient distilled or de-ionized water of (20 2) C into the vessel (4.1.1) to give a depth of at least 30 mm over the top of th
43、e test piece. If the shrinkage temperature of the test piece is known, then use water with a temperature at least 10 C below the expected shrinkage temperature. In such a case, it is essential to allow 5 min for a temperature adjustment of the leather sample.6.6 Heat the water and maintain the rate
44、of temperature rise at 2 C/min 0,2 C/min.6.7 At 30 s intervals, note the temperature and the corresponding position of the pointer. Continue the observation until the test piece shrinks considerably (see 6.8), the water boils vigorously, or the desired temperature is reached. If the water boils, rec
45、ord the temperature.6.8 Inspect the results or plot pointer position against temperature to find the temperature corresponding to the movement of the pointer which is equivalent to a shrinkage of the test piece of 0,3 % from its maximum length. Record the temperature as the shrinkage temperature.6.9
46、 If the shrinkage temperature determined in 6.8 is not at least 5 C higher than the temperature of the water originally placed in the vessel, discard the result and repeat 6.1 to 6.8 using water at a lower initial temperature.7 Test reportThe test report shall include the following:a) reference to t
47、his International Standard, i.e. ISO 3380;b) mean shrinkage temperature in each direction as obtained in 6.8 or quoted as greater than the final temperature reached in 6.7;c) any deviations from the method specified in this International Standard;d) full details for identification of the sample and
48、any deviations from ISO 2418 with respect to sampling.IULTCS/IUP 16:2015(E) ISO 2015 All rights reserved 3BS EN ISO 3380:2015ISO 3380:2015(E)Annex A (informative) Sources of test apparatusExamples of suitable products available commercially are given below. This information is given for the convenie
49、nce of users of this International Standard and does not constitute an endorsement by ISO of these products.The apparatus is manufactured, for example, by the following: SATRA Technology Centre, Wyndham Way, Telford Way, Kettering, Northamptonshire NN16 8SD, England; Giuliani Apparecchi Scientifiici, via Centrallo, 68/18, I-1056 Torino, Italy; SODEMAT, 29 rue Jean Moulin, ZA Coulmet, F-10450 Breviandes, France; Muver - Francisco Muoz Irles, Avda Hispanoamerica 42, E-03610 Petrer (Alicante),
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