1、February 2010DEUTSCHE NORM English price group 10No part of this standard 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 59.080.01!$C“1573258w
2、ww.din.deDDIN EN ISO 105-J03Textiles Tests for colour fastness Part J03: Calculation of colour differences (ISO 105-J03:2009)English version of DIN EN ISO 105-J03:2010-02Textilien Farbechtheitsprfungen Teil J03: Berechnung von Farbdifferenzen (ISO 105-J03:2009)Englische Fassung DIN EN ISO 105-J03:20
3、10-02SupersedesDIN EN ISO 105-J03:1997-07www.beuth.deDocument comprises 15 pages02.10 DIN EN ISO 105-J03:2010-02 2 National foreword This standard has been prepared by Technical Committee ISO/TC 38 “Textiles” in collaboration with Technical Committee CEN/TC 248 “Textiles and textile products” (Secre
4、tariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-05-11 AA Farbechtheit von Textilien Deutsche Echtheitskommission DEK. Amendments This standard differs from D
5、IN EN ISO 105-J03:1997-07 as follows: a) In subclause 3.1 “Calculation of CIELAB values”, all formulae have been revised. b) In subclause 3.3 “Calculation of the CMC colour difference”, the text of the former NOTE 2 has been transferred into a new subclause 3.3.2. c) In clause 4 “Test report”, item
6、d) has been revised. Previous editions DIN EN ISO 105-J03: 1997-07 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 105-J03 October 2009 ICS 59.080.01 Supersedes EN ISO 105-J03:1997English Version Textiles - Tests for colour fastness - Part J03: Calculation of colour differences (ISO 105-J03
7、:2009) Textiles - Essais de solidit des teintures - Partie J03: Calcul des carts de couleur (ISO 105-J03:2009) Textilien - Farbechtheitsprfungen - Teil J03: This European Standard was approved by CEN on 19 September 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations whic
8、h 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 CEN Management Centre or to any CEN member. This European St
9、andard exists 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 CEN Management Centre has the same status as the official versions. CEN members are the national
10、standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and Unite
11、d Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 105-J03:2
12、009: EBerechnung von Farbdifferenzen (ISO 105-J03:2009) Contents Page 1 2 3 3.1 3.2 3.3 Calculation of the CMC colour difference, Ecmc4 2 Bibliography13 Annex C (informative) Computer program for calculating colour difference .11 Annex B (informative) Representative test data 10 Annex A (informative
13、) Interpretation of results .9 Scope4 Principle4 Procedure.5 Calculation of CIELAB values 5 (l:c)7 Calculation of CIELAB colour differences values6 Test report8 Foreword .3 DIN EN ISO 105-J03:2010-02 EN ISO 105-J03:2009 (E) Foreword 3 collaboration with Technical Committee CEN/TC 248 “Textiles and t
14、extile products” the secretariat of which is held by BSI. 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 April 2010, and conflicting national standards shall be withdrawn at the latest by April 2
15、010. 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 document supersedes EN ISO 105-J03:1997. According to the CEN/CENELEC Intern
16、al Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malt
17、a, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 105-J03:2009 has been approved by CEN as a EN ISO 105-J03:2009 without any modification. This document (EN ISO 105-J03:2009) has been prepared
18、by Technical Committee ISO/TC 38 “Textiles” in DIN EN ISO 105-J03:2010-02 EN ISO 105-J03:2009 (E) 1 Scope This part of ISO 105 provides a method of calculating the colour difference between two specimens of the same material, measured under the same conditions, such that the numerical value cmc(l:c)
19、 for the total colour difference quantifies the extent to which the two specimens do not match. It permits the specification of a maximum value (tolerance) which depends only on the closeness of match required for a given end-use and not on the colour involved, nor on the nature of the colour differ
20、ence. The method also provides a means for establishing the ratio of differences in lightness to chroma and to hue. NOTE Annex A gives guidance on the interpretation of results. Annex B provides sample test data for use in checking computer programs. Annex C contains a sample computer program for ca
21、lculating colour difference. 2 Principle The CIE1)1976 L*a*b* (CIELAB) colour space has been modified to enhance its visual uniformity when calculating the colour difference between two specimens. The modifications to CIELAB by the CMC equation provide a numerical value, cmc, which describes the col
22、our difference between a sample and a reference in a more nearly uniform colour space. This permits the use of a single-number tolerance (“acceptability tolerance” or “pass/fail tolerance”) for judging the acceptability of a colour match in which the tolerance is independent of the colour of the ref
23、erence. The ellipsoid semi-axes (lSL, cScand SH) used to derive cmcprovide a means to interpret the three separate components of colour difference (lightness, chroma and hue) in manners suitable for a wide range of uses. The equation for cmcdescribes an ellipsoidal boundary (with axes in the directi
24、ons of lightness, chroma and hue) centred about a reference. The agreed-upon cmcacceptability tolerance describes a volume within which all specimens are acceptable matches to the reference. The colour difference is composed of three components that comprise the differences between the reference and
25、 the specimen. These are as follows. a) A lightness component that is weighted by a lightness tolerance (L*/lSL). This is represented as Lcmc. If the Lcmcis positive, the specimen is lighter than the reference. If the Lcmcis negative, the specimen is darker than the reference; b) A chroma component
26、that is weighted by the chroma tolerance (C*ab/cSc). This is represented as Ccmc. If the Ccmcis positive, the specimen is more chromatic than the reference. If the Ccmcis negative, the specimen is less chromatic than the reference; 1) Commission Internationale de lclairage, Central Bureau, Kegelgass
27、e 27, A-1030 Vienna, Austria. 4 DIN EN ISO 105-J03:2010-02 EN ISO 105-J03:2009 (E) c) A hue component that is weighted by the hue tolerance (H*ab/SH). This is represented as Hcmc. If the Hcmc is positive, the hue difference of the specimen is anti-clockwise from the reference in the CIELAB a*, b* di
28、agram. If the Hcmcis negative, the hue difference of the specimen is clockwise from the reference in the CIELAB a*, b* diagram. 3 Procedure 3.1 Calculation of CIELAB values Calculate the CIELAB L*, a*, b*, C*ab, habvalues from the X, Y, Z tristimulus values for both the reference and specimen as fol
29、lows: ()*116 16yLfQ=() ()* 500x yafQfQ=()()* 200yzbfQfQ=where () () ()/; /; /x ny nz nQXXQYYQZZ= and ()1/ 3 3() if (6/29)ii ifQ Q Q= else ()3(841/108) 4/29 if (6/29)iifQ Q Q=+u where i varies as X, Y, and Z ()1/222ab*Cab=+ ()abarctan * / *hba= expressed on a 0 to 360 scale with the a* positive axis
30、being 0 and the b* positive axis at 90. For these equations, Xn, Ynand Znare the tristimulus values of the illuminant/observer combination in which it is desired to calculate CMC(l:c) colour differences. The preferred illuminant/observer combination is D65/10. Table 1 gives the values for this and f
31、ive other combinations. 5 DIN EN ISO 105-J03:2010-02 EN ISO 105-J03:2009 (E) Table 1 Tristimulus values for six illuminant/observer combinations Tristimulus values Illuminant/observer combinations XnYnZnD65/10 94,811 100,00 107,304 D65/2 95,047 100,00 108,883 C/10 97,285 100,00 116,145 C/2 98,074 10
32、0,0 118,232 A/10 111,144 100,00 35,200 A/2 109,850 100,00 35,585 3.2 Calculation of CIELAB colour differences values Calculate the CIELAB colour differences L*, a*, b*, C*ab, E*ab, H*ab, using the following equations, in which the subscripts R and S refer respectively to the reference and specimen C
33、IELAB values: SR* *;L LL= SR* *;aa a= SR* *;bb b= ab ab,S ab,R* *;CC C= ()()()1/2222ab*;ELab=+()()()1/2222ab ab ab*HpqE L C= where 1if 0pm= W or 1if 0pm= where ab,S ab,Rmh h= in which . indicates that the positive value is to be used regardless of the sign of the expression between the two lines. 6
34、DIN EN ISO 105-J03:2010-02 EN ISO 105-J03:2009 (E) or the equivalent ()1/2ab ab,S ab,R S R S R*2* *HtCC aabb= where t = 1 if a*S b*R u a*R b*Sor 1t = SR RSif * * * *ab ab 3.3 Calculation of the CMC colour difference, Ecmc(l:c) 3.3.1 The CMC colour difference is obtained from the following equation:
35、()( )()()1/2222cmc L ab c ab H:*/ */ */Elc LlS CcS H S=+ +Calculate the ellipsoid semi-axes from the L*R, C *ab,Rand the hab,Rof the reference as follows: ()LR RR0,040 975 * / 1 0,017 65 * if * 16SL LL=+ W or LR0,511 if * 16;SL=345 THEN 350 ELSE GOTO 360 350 T=.36+ABS(.4*COS(H1+35)/57.3):GOTO 370 36
36、0 T=.56+ABS(.2*COS(H1+168)/57.3) 370 SL=.040975*L1/(1+.01765*L1):IF L1180 THEN Y1=-1 ELSE Y1=1 386 Y2=Y1*DA:IF Y2=0 THEN DH=-DH 390 DE=SQR(DL*DL+DC*DC+DH*DH) 400 RETURN 12 DIN EN ISO 105-J03:2010-02 EN ISO 105-J03:2009 (E) Bibliography 1 CIE Publication 15:2004, Colorimetry, 3rd Edition 13 DIN EN ISO 105-J03:2010-02 EN ISO 105-J03:2009 (E)
