1、DEUTSCHE NORM October 1999 Leather - Tests for colour fastness Colour fastness to water sisottina - - EN IS0 1570C (IS0 15700 : 1998) English version of DIN EN IS0 15700 ICs 59.1 40.30 Leder - Farbechtheitsprfungen - Bestimmung der Wassertropfenechtheit von Frbungen (IS0 15700 : 1998) European Stand
2、ard EN IS0 15700 : 1999 has the status of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been published in accordance with a decision taken by CEN/TC 289 to adopt, without alteration, International Standard IS0 15700 as a European Standard. The responsible
3、 German body involved in its preparation was the Normenausschu Materialprfung (Materials Testing Standards Committee), Technical Committee Physikalische Prfverfahren fr Leder. The DIN Standards corresponding to the International Standards referred to in clause 2 of the EN are as follows: IS0 Standar
4、d DIN Standard IS0 105-AO1 IS0 105-AO2 IS0 105-AO5 DIN EN IS0 105-AO1 DIN EN 201 05-AO2 DIN EN IS0 105-AO5 IS0 3696 DIN IS0 3696 National Annex NA Standards referred to (and not included in Normative references and Annex ZA) DIN EN 201 05-AO2 Tests for colour fastness of textiles - Part A02: Grey sc
5、ale for assessing change in colour (IS0 105-AO2 : 1993) DIN EN IS0 105-AO1 Tests for colour fastness of textiles - Part A01: General principles of testing DIN EN IS0 105-AO5 Tests for colour fastness of textiles - Part A05: Instrumental assessment of change in colour for determination of grey scale
6、rating (IS0 105-AO5 : 1996, including Tech- nical Corrigendum 1 : 1997) (IS0 105-AO1 : 1994) EN comprises 5 pages. No pari of this standard may be reproduced without the prior permission of Ref. No. DIN EN IS0 15700 : 1999-1 V Deutsches Institut fur Normung e. V., Berlin. Luth Verlag GmbH, D-10772 B
7、erlin, has the exclusive right of sale for German Standards (DIN-Normen). English price group 06 Sales No. 11 06 04.00 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 15700 August 1999 ICs 59.140.30 English version Leather - Tests for colour fastness Colour fastness to water spotting (IS0 1
8、5700 : 1998) Cuir- Essai de solidit des teintures - Solidit des teintures la goutte deau (IS0 15700 : 1998) Leder - Farbechtheitsprfungen - Bestimmung der Wasser- tropfenechtheit von Frbungen (IS0 15700 : 1998) This European Standard was approved by CEN on 1999-07-23. CEN members are bound to comply
9、 with the CENKENELEC 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 national standards may be obtained on application to the Central Secret
10、ariat or to any CEN member. The European Standards exist 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 language and notified to the Central Secretariat has the same status as the officia
11、l versions. CEN members are the national standards bodies of Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. CEN European Committee for Standar
12、dization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1999. CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No. EN IS0 15700 : 1999 E Page 2 EN IS0 15700 : 1999
13、 Foreword International Standard IS0 15700 : 1998 which was prepared by International Union of Leather Technologists and Chemists Societies, has been adopted by Technical Committee CEN/TC 289 Leather, the Secretariat of which is held by UNI, as a European Standard. This European Standard shall be gi
14、ven the status of a national standard, either by publication of an identical text or by endorsement, and conflicting national standards withdrawn, by February 2000 at the latest. In accordance with the CENKENELEC Internal Regulations, the national standards organizations of the following countries a
15、re bound to implement this European Standard: Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. Leather - Tests for colour fastness - Colour fast
16、ness to water spotting, Endorsement notice The text of the International Standard IS0 15700 : 1998 was approved by CEN as a European Standard without any modification. NOTE: Normative references to international publications are listed in Annex ZA (normative). I Scope This International Standard spe
17、cifies a method for assessing the effect, on leather of all kinds, caused by spotting with water. The method is suitable for assessing the change in physical appearance and the colour change of the leather. 2 Normative references The following standards contain provisions which, through reference in
18、 this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most re
19、cent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 105-AO1 :1994, Textiles - Tests for colour fastness - Part AOI: General principles of testing. IS0 105-A02: 1993, Textiles - Tests for colour fastness - Part A02
20、Grey scale for assessing change in colour. IS0 105-A05: 1996, Textiles - Tests for colour fastness - Part A05: Instrumental assessment of change in colour for determination of grey scale rating. IS0 3696: 1987, Water for analytical laboratory use - Specification and test methods. Page 3 EN IS0 15700
21、 : 1999 3 Principle Two drops of distilled water are placed at separate spots on the leather. After 30 min, any surplus water is removed with filter paper from one of the drops and any physical effects are observed. The other drop is allowed to evaporate overnight and the change in colour of the lea
22、ther is assessed with the standard grey scale. Since the finish of a patent leather and other plastic coated leathers is impervious to water, an alternative procedure is required in which the water spot are placed on the inside surface of the leather. The general colour fastness testing principles a
23、re in accordance with those described in IS0 105-A01, taking into account the differences between textile substrates and leather. 4 Apparatus and materials Ordinary laboratory apparatus and 4.1 Pipette, to deliver water drops of approximately 0,15 ml. 4.2 Water, grade 3 as defined in IS0 3696. 4.3 G
24、rey scale for assessing change in colour, in accordance with IS0 105-A02. NOTE 1 IS0 105-A05, this may be used instead of the visual assessment method. If a suitable instrumental system is available for measuring the change in colour in accordance with 5 Test specimen Take a specimen of leather, at
25、least 100 mm x 50 mm in size, which is representative of the piece of leather available for testing. 6 Procedure (for patent leathers, see clause 7) 6.1 Place the specimen on a flat surface with the surface to be tested uppermost. Normally this will be the side corresponding to the outside of the le
26、ather article to be produced from the piece of leather. 6.2 With the pipette (4.1) place two drops (each approximately 0,15 mi) of water (4.2) approximately 50 mm apart on the surface of the specimen. 6.3 After 30 min remove the residual water (if any) from one spot by gently blotting with filter pa
27、per and note any physical effects the water has had on the leather. NOTE 2 The physical effects which may be observed include swelling and loss of lustre. To detect these, it may be necessary to observe the leather from ail directions. Describe the severity of the effect using one of the following t
28、erms: slight, moderate, or severe. Page 4 EN IS0 15700 : 1999 6.4 After allowing the specimen to stand for 16 h, assess, either visually in accordance with IS0 105-A02 or instrumentally in accordance with IS0 105-A05, the grey scale rating corresponding to the change in colour of that part of the sp
29、ecimen which was spotted with the second drop. To assess the permanence of the colour change, subject the leather surface to a light manual treatment as described below and again assess the change in colour using the grey scale. (Subject the leather to the type of manual treatment normally applied b
30、y the end user to this type of leather. For example, polish shoe upper leathers lightly with a clear wax shoe polish, stake upholstery, gloving and clothing leathers lightly and brush suede leathers lightly.) 7 Patent leathers and other plastic-coated leathers NOTE 3 The wetting of such leathers fro
31、m the back during use can cause ring-shaped marks or patches under the finish. However, such effects are not produced by applying water to the finished side of the leather, as in this International Standard, because patent leather finishes are impervious to water. Therefore an alternative procedure
32、is required for this type of leather. Test the fastness to water spotting of patent leather and other plastic coated leathers by wetting the inside surface of the specimen. Wet a small area with distilled water and, if necessary, aid wetting by rubbing in the water, for example, with a spatula. Cont
33、inue adding water until it has penetrated through to the finished side or caused noticeable swelling. When this has happened, wait for 30 min and assess the effects on the leather as in 6.3. 8 Effect of wear In particular situations, it may be informative to test the specimen after it has been subje
34、ct to simulated wear. Pieces of leather may, for example, first be subjected to a repeated flexing treatment in a suitable machine prior to testing for fastness to water spotting. 9 Testreport The test report shall include the following information: a) a reference to this International Standard; b)
35、a description of the type of leather tested; c) an indication as to which surface of the leather was tested; d) the physical effects of the water has had on the leather and the severity of each effect (see 6.3); e) the grey scale method used and the grey scale rating obtained for the change in colou
36、r of the specimen before and after manual treatment (see 6.4); Page 5 EN IS0 15700 : 1999 f) the method of assessment and the grey scale rating obtained for the change in coiour of the specimen before and after simulated wear, if applicable (see clause 8); g) details of any deviations from the proce
37、dure specified; h) the date of the test. Annex A (informative) Bibliography l The development of this test has been described in, J. Soc. Leather Trades Chern., 45, p. 51 (1961). 2 IUF 120, General principles of colour fastness testing of leather. Annex ZA (normative) Normative references to interna
38、tional publications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated referen
39、ces, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. Publication m IS0 105-AO1 1994 IS0 105-AO2 1993 IS0 105-AO5
40、 1996 IS0 3696 1987 m Ja m Textiles - Tests for colour fastness - Part A01 : EN IS0 105-AO1 1995 General principles of testing Textiles - Tests for colour fastness - Part A02: EN 20105-AO2 1994 Grey scale for assessing change in colour Textiles - Tests for colour fastness - Part A05: EN IS0 105-AO5 1997 Instrumental assessment of change in colour for determination of grey scale rating Water for analytical laboratory use - EN IS0 3696 1995 Specification and test methods
