1、May 2013 Translation by DIN-Sprachendienst.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.
2、140.30!%#vV“2008351www.din.deDDIN EN ISO 11640Leather Tests for colour fastness Colour fastness to cycles of to-and-fro rubbing (ISO 11640:2012);English version EN ISO 11640:2012,English translation of DIN EN ISO 11640:2013-05Leder Farbechtheitsprfungen Bestimmung der Reibechtheit von Frbungen (ISO
3、11640:2012);Englische Fassung EN ISO 11640:2012,Englische bersetzung von DIN EN ISO 11640:2013-05Cuir Essais de solidit des coloris Solidit des coloris au frottement en va-et-vient (ISO 11640:2012);Version anglaise EN ISO 11640:2012,Traduction anglaise de DIN EN ISO 11640:2013-05SupersedesDIN EN ISO
4、 11640:2013-02www.beuth.deDocument comprises 13 pagesIn case of doubt, the German-language original shall be considered authoritative.04.13DIN EN ISO 11640:2013-05 2 A comma is used as the decimal marker. National foreword This document (EN ISO 11640:2012) has been prepared by Technical Committee CE
5、N/TC 289 “Leather” (Secretariat: UNI, Italy) in collaboration with the International Union of Leather Technologists and Chemists Societies (IULTCS). This document is based on IUF 450. The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing St
6、andards Committee), 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 105-A01 DIN EN ISO 105-A01 ISO 105-A02 DIN EN 20105-
7、A02 ISO 105-A03 DIN EN 20105-A03 ISO 105-A04 DIN EN ISO 105-A04 ISO 105-A05 DIN EN ISO 105-A05 ISO 2418 DIN EN ISO 2418 ISO 2419 DIN EN ISO 2419 ISO 3696 DIN ISO 3696 ISO 4045 DIN EN ISO 4045 ISO 9073-2 DIN EN ISO 9073-2 ISO 11641 DIN EN ISO 11641 Amendments This standard differs from DIN EN ISO 116
8、40:1998-12 as follows: a) the standard has been editorially revised; b) the procedure has been technically updated; c) Subclause 4.2 “Rubbing material” has been revised; d) Subclause 7.8 has been added allowing the instrumental assessment of the grey scale staining; e) Clause 8 “Precision” has been
9、added. Compared with DIN EN ISO 11640:2013-02, the following correction has been made to the German version only: a) in Subclause 4.1.3, the tolerance has been corrected . Previous editions DIN 53339: 1978-01 DIN EN ISO 11640: 1998-12, 2013-02 DIN EN ISO 11640:2013-05 3 National Annex NA (informativ
10、e) Bibliography DIN EN 20105-A02, Textiles Tests for colour fastness Part A02: Grey scale for assessing change in colour DIN EN 20105-A03, Textiles Tests for colour fastness Part A03: Grey scale for assessing staining DIN EN ISO 105-A01, Textiles Tests for colour fastness Part A01: General principle
11、s of testing DIN EN ISO 105-A04, Textiles Tests for colour fastness Part A04: Method for the instrumental assessment of the degree of staining of adjacent fabrics DIN EN ISO 105-A05, Textiles Tests for colour fastness Part A05: Instrumental assessment of change in colour for determination of grey sc
12、ale rating DIN EN ISO 2418, Leather Chemical, physical and mechanical and fastness tests Sampling location DIN EN ISO 2419, Leather Physical and mechanical tests Sample preparation and conditioning DIN EN ISO 4045, Leather Chemical tests Determination of pH DIN EN ISO 9073-2, Textiles Test methods f
13、or nonwovens Part 2: Determination of thickness DIN EN ISO 11641, Leather Tests for colour fastness Colour fastness to perspiration DIN ISO 3696, Water for analytical laboratory use Specification and test methods DIN EN ISO 11640:2013-05 4 This page is intentionally blank EUROPEAN STANDARD NORME EUR
14、OPENNE EUROPISCHE NORM EN ISO 11640 November 2012 ICS 59.140.30 Supersedes EN ISO 11640:1998English Version Leather - Tests for colour fastness - Colour fastness to cycles of to-and-fro rubbing (ISO 11640:2012) Cuir - Essais de solidit des coloris - Solidit des coloris au frottement en va-et-vient (
15、ISO 11640:2012) Leder - Farbechtheitsprfungen - Bestimmung der Reibechtheit von Frbungen (ISO 11640:2012) This European Standard was approved by CEN on 14 November 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
16、Standard 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 (En
17、glish, 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
18、, 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, Switzerla
19、nd, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref.
20、No. EN ISO 11640:2012: EContents Page Foreword .3 1 Scope 4 2 Normative references 4 3 Principle . 4 4 Apparatus and materials. 5 5 Test specimens 6 6 Conditioning of test specimens and pieces of felt 6 6.1 Dry leather and dry felt . 6 6.2 Wet felt 6 6.3 Wet leather . 6 6.4 Felt wetted with artifici
21、al perspiration solution 6 7 Procedure . 7 8 Precision 7 9 Test report 8 Annex A (informative) Commercial sources for apparatus and materials 9 DIN EN ISO 11640:2013-05 EN ISO 11640:2012 (E) 2Foreword This document (EN ISO 11640:2012) has been prepared by Technical Committee CEN/TC 289 “Leather“, th
22、e secretariat of which is held by UNI, in collaboration with the International Union of Leather Technologists and Chemists Societies. 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 May 2013, and
23、conflicting national standards shall be withdrawn at the latest by May 2013. 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 shall not be held responsible for identifying any or all such patent rights. This docu
24、ment supersedes EN ISO 11640:1998. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav
25、 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 the United Kingdom. Endorsement notice The text of ISO 11640:2012 has be
26、en approved by CEN as a EN ISO 11640:2012 without any modification. DIN EN ISO 11640:2013-05 EN ISO 11640:2012 (E) 3 1 Scope This International Standard specifies a method for determining the behaviour of the surface of a leather on rubbing with a wool felt. It is applicable to leathers of all kinds
27、. 2 Normative references The following referenced 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 105-A01, Textiles Te
28、sts for colour fastness Part A01: General principles of testing ISO 105-A02, Textiles Tests for colour fastness Part A02: Grey scale for assessing change in colour ISO 105-A03, Textiles Tests for colour fastness Part A03: Grey scale for assessing staining ISO 105-A04, Textiles Tests for colour fastn
29、ess Part A04: Method for the instrumental assessment of the degree of staining of adjacent fabrics ISO 105-A05, Textiles Tests for colour fastness Part A05: Instrumental assessment of change in colour for determination of grey scale rating ISO 2418, Leather Chemical, physical and mechanical and fast
30、ness tests Sampling location ISO 2419, Leather Physical and mechanical tests Sample preparation and conditioning ISO 3696:1987, Water for analytical laboratory use Specification and test methods ISO 4045, Leather Chemical tests Determination of pH ISO 9073-2, Textiles Test methods for nonwovens Part
31、 2: Determination of thickness ISO 11641, Leather Tests for colour fastness Colour fastness to perspiration 3 Principle One side of the leather specimen is rubbed with pieces of reference wool felt under a given pressure for a given number of forward and backward motions. The degree of colour staini
32、ng of the wool felt and the change in colour of the leather are assessed with grey scales. Any other visible change in, or damage to, the surface of the leather is also reported. DIN EN ISO 11640:2013-05 EN ISO 11640:2012 (E) 4The general colour fastness testing principles shall be in accordance wit
33、h those described in ISO 105-A01, taking into account that the substrate is leather. 4 Apparatus and materials Ordinary laboratory apparatus and 4.1 Rub fastness test apparatus incorporating the elements specified in 4.1.1 to 4.1.3, and optionally including those described in 4.1.4. 4.1.1 A carriage
34、 with: a) a horizontal, completely planar metal platform; b) a holder for fastening the leather to the platform, leaving approximately 80 mm exposed; c) a device with which the leather may be extended at least 20 % linearly in the direction of rubbing. 4.1.2 A finger, 500 g 25 g in mass, removable,
35、yet able to be fixed firmly in place and able to freely move vertically, with: a) a base measuring 15 mm 15 mm; b) a device for attaching pieces of wool felt (4.2) to the base; the depth of the cavity shall be 3,9 mm 0,1 mm; c) a weight-piece of mass 500 g 10 g to load the finger up to a total mass
36、of 1 000 g 35 g; d) means of lowering the finger with the base flat onto the test specimen. 4.1.3 Means for driving the carriage to and fro with a distance of travel of 35 mm to 40 mm at a frequency of 40 cycles/min 2 cycles/min for the complete forward and backward motion. 4.1.4 Convenient, but not
37、 essential, elements as follows: a) means of adjusting the position of the finger at right angles to the direction of rubbing, so that two or three positions may be used for rubbing on one piece of leather; b) a motor to drive the carriage forward and backward (see 4.1.3); c) means for pre-selecting
38、 a given number of cycles. 4.2 Rubbing material, square pieces of white or black wool felt, measuring approximately 15 mm 15 mm, punched out of a sheet of pure wool felt meeting the following specification: pH of water extract between 4,5 and 8,0, according to ISO 4045; mass per unit area: 1 900 g/m
39、2 150 g/m2; thickness, determined in accordance with ISO 9073-2, Method A: 6,0 mm 0,5 mm. The black felt shall be dyed with Acid Black 24 (C.l. 26370). NOTE An example of suitable wool felts available commercially is given in Annex A. 4.3 Vessel suitable for evacuation, e.g. vacuum-desiccator. DIN E
40、N ISO 11640:2013-05 EN ISO 11640:2012 (E) 5 4.4 Vacuum pump, capable of evacuating the vessel (4.3). For the wetting of leather, according to 6.3, the vacuum pump shall be capable of achieving approximately 5 kPa. 4.5 Demineralized water, grade 3 in accordance with ISO 3696:1987. 4.6 Grey scale for
41、assessing staining, in accordance with ISO 105-A03. 4.7 Grey scale for assessing change in colour, in accordance with ISO 105-A02. 4.8 Spectrophotometer or colorimeter for assessing change in colour and staining, complying with ISO 105-A04 and ISO 105-A05. 5 Test specimens 5.1 If the piece of leathe
42、r available for testing is a whole hide or skin, then first take a sample in accordance with ISO 2418. 5.2 Test specimens shall be rectangular pieces of leather, at least 100 mm long and, for each position of the finger see 4.1.4 a), at least 20 mm wide. Usually with one set of conditions (condition
43、ing of leather and felt, number of cycles, etc.) only one specimen is tested. In case of dispute, it is strongly recommended to test several specimens, sampled from different positions on the hide or skin. 6 Conditioning of test specimens and pieces of felt 6.1 Dry leather and dry felt Condition lea
44、ther and wool felt in accordance with ISO 2419. 6.2 Wet felt Wet the felt by placing pieces of felt in demineralized water (4.5). Heat the water to boiling and allow it to boil gently until the felt pieces sink. Then decant off the hot water and replace it with cold demineralized water. Allow to sta
45、nd until the wetted felt pieces have reached room temperature. Take each piece of felt from the water just before use and squeeze or wipe it in order to reduce its water uptake to approximately 1 g. The wet pieces of felt shall not be allowed to soak in the water for more than 24 h. 6.3 Wet leather
46、Wet the leather by immersing specimens in demineralized water (4.5) in such a way that there is no contact between specimens. Place the containing vessel in the vacuum vessel (4.3), produce a vacuum of approximately 5 kPa and hold it for 2 min. Restore normal pressure. Carry out this procedure two m
47、ore times. Just before use, take the specimens out of the water and remove excess water on their surfaces with blotting paper. The specimens shall not be allowed to soak in the water for more than 1 h. 6.4 Felt wetted with artificial perspiration solution Wet the felt with the alkaline artificial pe
48、rspiration solution, prepared as specified in ISO 11641. Place the containing vessel in the vacuum vessel (4.3), evacuating and restoring pressure repeatedly until the felt DIN EN ISO 11640:2013-05 EN ISO 11640:2012 (E) 6pieces sink. Just before use, take each felt piece out of the solution and squeeze or wipe it in order to reduce its uptake of artificial perspiration solution to approximately 1 g. The felt shall not be allowed to soak in the artificial perspiration solution for more than 24 h. 7 Procedure 7.1 Mount a conditioned specimen on the apparatus and stretch it 10 % in
