1、December 2015 English price group 8No 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 59.140.30!%Jo“2399676www.din.deD
2、IN EN ISO 3380Leather Physical and mechanical tests Determination of shrinkage temperature up to 100 C (ISO 3380:2015);English version EN ISO 3380:2015,English translation of DIN EN ISO 3380:2015-12Leder Physikalische und mechanische Prfungen Bestimmung der Schrumpfungstemperatur bis 100 C (ISO 3380
3、:2015);Englische Fassung EN ISO 3380:2015,Englische bersetzung von DIN EN ISO 3380:2015-12Cuir Essais physiques et mcaniques Dtermination de la temprature de rtrcissement jusqu 100 C (ISO 3380:2015);Version anglaise EN ISO 3380:2015,Traduction anglaise de DIN EN ISO 3380:2015-12SupersedesDIN EN ISO
4、3380:2003-10www.beuth.deDocument comprises 10 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.01.16DIN EN ISO 3380:2015-12 2 A comma is used as the decimal marker. National foreword This document (EN ISO 3380:2015) has been pre
5、pared by Technical Committee CEN/TC 289 “Leather” (Secretariat: UNI, Italy) in collaboration with the International Union of Leather Technologists and Chemists Societies (IULTCS). The responsible German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee
6、Materials Testing), Working Committee NA 062-05-51 AA Anforderungen und physikalische Prfverfahren fr Leder und seine Ausgangsprodukte. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 2418 DIN EN ISO 2418 ISO 2589 DIN EN ISO 2589 ISO 36
7、96 DIN ISO 3696 Amendments This standard differs from DIN EN ISO 3380:2003-10 as follows: a) Subclause 6.5 has been technically revised. Previous editions DIN EN ISO 3380: 2003-10 DIN 53336: 1948-12, 1977-01 National Annex NA (informative) Bibliography DIN EN ISO 2418, Leather Chemical, physical and
8、 mechanical and fastness tests Sampling location DIN EN ISO 2589, Leather Physical and mechanical tests Determination of thickness DIN ISO 3696, Water for analytical laboratory use Specification and test methods EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3380 September 2015 ICS 59.140.
9、30 Supersedes EN ISO 3380:2002English Version Leather - 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 mechan
10、ische Prfungen - Bestimmung der Schrumpfungstemperatur 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 nat
11、ional 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, French, German). A ve
12、rsion 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, Bulgaria, Croatia, Cyprus,
13、 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, Turkey and United Kingdo
14、m. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN 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:
15、2015 EForeword 1 Scope .2 Normative references 3 Principle 4 Apparatus .5 Sampling and sample preparation 6 Procedure.7 Test report .Annex A (informative) Sources of test apparatus Contents PageEuropean foreword . 3 EN ISO 3380:2015 (E) 2455556778DIN EN ISO 3380:2015-12 European foreword This docume
16、nt (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 be given the status of a
17、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 that some of the elements
18、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 to implement this Europea
19、n 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, Romania, Slovakia, Sloven
20、ia, 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. EN ISO 3380:2015 (E) 3DIN EN ISO 3380:2015-12 ForewordISO (the International Organization for Standardization) is a world
21、wide 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 on t
22、hat 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 doc
23、ument 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 Directi
24、ves, 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 development o
25、f 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 specific
26、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 Un
27、ion 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 ISO
28、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 soci
29、eties 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 for
30、 leather.This third edition cancels and replaces the second edition (ISO 3380:2002), 6.5 of which has been technically revised.EN ISO 3380:2015 (E) 4DIN EN ISO 3380:2015-12 1 ScopeThis International Standard specifies a method for determination of the shrinkage temperature of leather up to 100 C. It
31、 is applicable to all leathers.2 Normative referencesThe 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
32、 document (including any amendments) applies.ISO 2418, Leather Chemical, physical and mechanical and fastness tests Sampling locationISO 2589, Leather Physical and mechanical tests Determination of thicknessISO 3696, Water for analytical laboratory use Specification and test methods3 PrincipleThe te
33、st piece is heated at a specified rate in water until a sudden shrinkage occurs.4 Apparatus4.1 Schematic layout of a suitable 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
34、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 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 t
35、o 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 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 magni
36、fied 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 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 requirem
37、ents grade 3 of ISO 3696.4.1.7 Heater, capable of heating the vessel filled to its working depth with distilled or de-ionized water at a rate of 2 C/min 0,2 C/min.EN ISO 3380:2015 (E) 5DIN EN ISO 3380:2015-12 4.1.8 Stirrer, capable of sufficiently agitating the water in the vessel such that the temp
38、eratures at the top and bottom of the test piece do not differ by more than 1 C.Key1 pulley 5 fixed test 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 Thickne
39、ss gauge, conforming to the requirements of ISO 2589.4.3 Desiccator or other vessel which can be evacuated.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
40、mm.5 Sampling and sample preparation5.1 Sample in accordance with ISO 2418.5.2 Determine the thickness of 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 rectang
41、ular test pieces 50 mm 2 mm 2,0 mm 0,2 mm. Prepare two samples parallel to the backbone and two samples perpendicular 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 o
42、r skin, provided that the overall total is not less than four test pieces in each direction.EN ISO 3380:2015 (E) 6DIN EN ISO 3380:2015-12 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
43、shown that they do not affect the results.6 ProcedureFor dry test 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
44、.2 Stand the tube in the desiccator (4.3), supporting it in an upright 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
45、6 h.6.4 Attach an end of the test piece to the fixed test piece holder (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 ve
46、ssel (4.1.1) to give a depth of at least 30 mm over the top of the 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 adjustmen
47、t of the leather sample.6.6 Heat the water and maintain the rate 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 vigorousl
48、y, or the desired temperature is reached. If the water boils, record 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 maximu
49、m length. Record the temperature as the shrinkage temperature.6.9 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 this International Standard, i.e. ISO 3380;b) mean shrinkage temperature in each direction as obtained in 6.8 or quoted as great
