DIN EN ISO 105-A05-1997 Textiles - Tests for colour fastness - Part A05 Instrumental assessment of change in colour for determination of grey scale rating (ISO 105-A05 1996 includi.pdf

1、DEUTSCHE NORM July 1997 Tests for colour fastness of textiles Part A05: Instrumental assessment of change in colour for determination of grey scale rating (IS0 105-AO5: 1996, including Technical Corrigendum 1 : 1997) English version of DIN EN IS0 105-AO5 - DIN - EN IS0 105-AO5 European Standard EN I

2、S0 105-A05: 1997 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 248 to adopt, without alteration, International Standard IS0 105-AO5 as a European Standard. The responsible Germ

3、an body involved in its preparation was the Normenausschu Materialprfung (Materials Testing Standards Committee). DIN EN IS0 105-JO3 is the Standard corresponding to International Standard IS0 105-JO3 referred to in clause 2 of the EN. National Annex NA Standard referred to (and not included in Norm

4、ative references and Annex ZA) DIN EN IS0 105-JO3 Tests for colour fastness of textiles - Calculation of colour differences (IS0 105-J03:1995) Q No pari of this standard may be reproduced without the prior permission of Beuth Verlag GmbH, Berlin, has the exclusive right of sale for German Standards

5、(DIN-Normen). Ref. No. DIN EN IS0 105-A05: 1997-1 Sales No. 11 o1 DIN Deutsches Institut fr Normung e.V., Berlin. English price group 06 EUROPEAN STANDARD EUROPISCHE NORM NORME EUROPENNE EN IS0 105-AO5 April 1997 ICs 59.080.01 Descriptors: Testing, colour fastness, textiles, grey scale rating. Engli

6、sh version Textiles Tests for colour fastness Part A05: Instrumental assessment of change in colour for determination of grey scale rating (IS0 105-AO5: 1996, including Technical Corrigendum 1 : 1997) Textiles - Essais de solidit des teintures - Partie A05: Evaluation instrumentale de la dgradation

7、pour la dtermination du degr de lchelle de gris (IS0 105-A05:1996, Rectificatif Technique 1 : 1997 inclus) Textilien - Farbechtheitsprfungen - Teil A05: Instrumentelle Bewertung der nderung der Farbe zur Bestimmung der Graumastabszahl (IS0 105-A05: 1996, einschlielich Technische Korrektur 1 : 1997)

8、This European Standard was approved by CEN on 1997-03-28. CEN members are bound to comply 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 reference

9、s concerning such national standards may be obtained on application to the Central Secretariat 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 it

10、s own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Nether- lands, Norway, Portu

11、gal, Spain, Sweden, Switzerland, and the United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1997. CEN - All rights of exploitation in any form and by any means reserved wo

12、rldwide for CEN national members. Ref. No. EN IS0 105-A05:1997 E Page 2 EN IS0 105-AO5: 1997 Foreword International Standard IS0 105-A05: 1996 Textiles - Tests for colour fastness - Part A05: Instrumental assessment of change in colour for deter- mination of grey scale rating, which was prepared by

13、ISO/TC 38 Textiles of the International Organization for Standardization, has been adopted by Technical Committee CEN/TC 248 Textiles and textile products, the Secretariat of which is held by BSI, as a European Standard. This European Standard shall be given the status of a national standard, either

14、 by publication of an identical text or by endorsement, and conflicting national standards withdrawn, by October 1997 at the latest. In accordance with the CENLENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard:

15、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. Endorsement notice The text of the International Standard IS0 105-A05: 1996, including Technica

16、l Corrigendum 1 : 1997 was approved by CEN as a European Standard without any modification. NOTE: Normative references to international publications are listed in Annex ZA (normative). 1 Scope This part of IS0 105 specifies an instrumental method for assessing the change in colour of a test specimen

17、 in comparison to an identical untreated reference, and the calculations undertaken to convert the instrumental measurements into a grey scale rating. This method is intended as an alternative to the many national methods for visual evaluation of the effect of a colour fastness test on any textile m

18、aterial. NOTE 1 and/or other factors. There may be a difference between instrumental and visual assessments of specimens due to fluorescence, 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of IS0 105. At the

19、 time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of IS0 105 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain

20、 registers of currently valid International Standards. IS0 105-J03:1995, Textiles - Tests for colour fastness - Part J03: Calculation of colour differences. CIE-Publication No. 15.2, Colorimetry, 2nd ed., 1986.) 3 Principle The colour of the specimen which has been subjected to the colour fastness t

21、est and the colour of an identical untreated specimen are measured instrumentally. The CIELAB coordinates for lightness L, chroma Cab and hue hab are determined for both specimens, and the CIELAB differences AL, Ac;, and AHab are calculated and con- verted to a grey scale rating by means of a series

22、 of equations. 1 ) Available from the CIE Central Bureau, Kegelgasse 27, 14-1 030 Vienna, Austria Page 3 EN IS0 105-AO5: 1997 4 Apparatus 4.1 flecting specimens as described in CIE Publication 15.2, subclause 1.4. Spectrophotometer or colorimeter, meeting any one of the illuminating and viewing cond

23、itions for re- 5 Test specimen Choose a representative sample of material which has been subjected to a colour fastness test, of adequate size to fit the sample holder of the instrument used and having no visible defects. Back a single layer of the test specimen with an opaque white material contain

24、ing no fluorescent whitening agents (FWA). Both the test speci- men and the untreated reference shall be backed in an identical manner. NOTE 2 give an acceptably opaque specimen Alternatively, back the test specimen with a number of thicknesses of the identical untreated material sufficient to 6 Tes

25、t procedure 6.1 From the untreated material, prepare a reference consisting of the same number of thicknesses of material as that used to prepare the test specimen (see clause 5). Mount the reference in the sample holder and measure its colour values with the instrument (see 4.1). From the instrumen

26、t system, obtain CIE tristimulus values using CIE illuminant D65 and IO” observer. Calculate the CIELAB L, cab and h, values using the data obtained, as specified in IS0 105-J03. NOTE 3 Permitted iIluminant/observer alternatives for colorimetric calculations are: D65/2”, C/2”; C/1 O” 6.2 and ha, val

27、ues. Measure the colour of the specimen (see clause 5) in the same manner and calculate the CIELAB L, Ca, 7 Calculation of change in colour 7.1 from the data obtained in clause 6. Calculate the differences in lightness U, chroma AC:, and hue AHab between the reference and specimen 7.2 Calculate the

28、change in colour AEF using the following equations, where: the subscripts S and R refer to test Specimen and Reference respectively; the subscript M is used to indicate functions of the means of the values of the specimen and reference; the subscript K is used to indicate corrected hue and chroma fu

29、nctions; the subscript F is used to indicate special colorimetric values, to distinguish them from the CIELAB colorimetric values in common usage. Page 4 EN IS0 105-AO5: 1997 CM = (cb.R) I2 x = (h, - 280) /30f if I h, - 280 I 180 hM = (b,S -t hab,R) /2 if I hab,S - hab,R I hM = (hab,S f hab,R)/2 + h

30、M = (hab,C f hab,R)/2 - 8o 8o if I hab.S - hab.R I 8o if 1 hab,S - hab.R I 8o and hab,S -k hab,R 1 hab,S + kb,R I b 360 360 8o and G, C b) all details necessary for complete identification of the specimen(s) tested; c) identification of the spectrophotometer or colorimeter used, including the CIE ge

31、ometry type; d) test conditions, including illuminant and observer used; e) grey scale rating GS, determined for each test specimen, expressed to the nearest half-point (e.g. 5; 4,5; 4; etc.). fi date of the test. Annex ZA (normative) Normative references to international publications with their rel

32、evant 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 references, subsequent amendments to or r

33、evisions 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 Year Title - EN Year IS0 105-JO3 1995 Textiles - Test for colour EN IS0 105-JO3 1996 fastness - Part J03: Calculation of colour differences