SIST EN ISO 105-J03:2010
(Main)Textiles - Tests for colour fastness - Part J03: Calculation of colour differences (ISO 105-J03:2009)
Textiles - Tests for colour fastness - Part J03: Calculation of colour differences (ISO 105-J03:2009)
ISO 105-J03:2009 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 ∆Ecmc(l:c) 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 difference. The method also provides a means for establishing the ratio of differences in lightness to chroma and to hue.
Textilien - Farbechtheitsprüfungen - Teil J03: Berechnungen von Farbdifferenzen (ISO 105-J03:2009)
Dieser Teil von ISO 105 liefert eine Methode zur Berechnung des Farbabstandes zwischen zwei unter denselben Bedingungen gemessenen Proben des gleichen Materials, sodass der Zahlwert von Ecmc(l:c) für den Farbabstand quantifiziert, in welchem Ausmaß die beiden Proben nicht übereinstimmen. Er ermöglicht die Festlegung eines Maximalwertes (Toleranz), der unabhängig von der betreffenden Farbe und der Art des Farbunterschieds, nur von der für einen Anwendungszweck erforderlichen Farbübereinstimmung abhängt. Die Methode ermöglicht außerdem, das Verhältnis zwischen dem Helligkeitsunterschied zu den Buntheits- und Bunttonunterschieden einzurichten.
ANMERKUNG Anhang A ist eine Anleitung zur Auslegung der Ergebnisse. Anhang B stellt Messproben-Prüfdaten für das Prüfen von Rechnerprogrammen zur Verfügung. Anhang C enthält ein Rechnerprogramm-Beispiel für die Berechnung des Farbabstandes.
Textiles - Essais de solidité des teintures - Partie J03: Calcul des écarts de couleur (ISO 105-J03:2009)
L'ISO 105-J03:2009 fournit une méthode de calcul des écarts de couleur entre deux éprouvettes de matériau identique, mesurées dans les mêmes conditions, de manière que la valeur numérique ∆Ecmc(l:c), soit l'écart de couleur total, quantifie la fidélité de la conformité des couleurs des deux éprouvettes. Il est ainsi possible de spécifier une valeur maximale (tolérance) qui ne dépend que de la fidélité de la conformité de couleur exigée pour une utilisation finale donnée, et pas de la couleur considérée, ni de la nature de l'écart de couleur. La méthode fournit également un moyen d'établir le rapport entre les nuances de clarté, le chroma et la teinte.
Tekstilije - Preskušanje barvne obstojnosti - Del J03: Računanje barvnih razlik (ISO 105-J03:2009)
Ta del ISO 105 določa metodo računanja barvnih razlik med dvema primerkoma istega materiala z merjenjem pod istimi pogoji, tako da numerična vrednost Δ?cmc(l:c) za skupno barvno razliko ovrednoti obseg, kateremu ta dva primerka ne ustrezata. Dopušča specifikacijo največje vrednosti (tolerance), ki je odvisna zgolj od doseženega zahtevanega ujemanja za podano končno uporabo in ne od uporabljene barve niti vrste barvnih razlik. Ta metoda prav tako predpisuje način vzpostavitve razmerja razlik ob upoštevanju kromata in barvnega odtenka.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2010
1DGRPHãþD
SIST EN ISO 105-J03:1999
7HNVWLOLMH3UHVNXãDQMHEDUYQHREVWRMQRVWL'HO- 5DþXQDQMHEDUYQLKUD]OLN ,62
-
Textiles - Tests for colour fastness - Part J03: Calculation of colour differences (ISO 105-
J03:2009)
Textilien - Farbechtheitsprüfungen - Teil J03: Berechnungen von Farbdifferenzen (ISO
105-J03:2009)
Textiles - Essais de solidité des teintures - Partie J03: Calcul des écarts de couleur (ISO
105-J03:2009)
Ta slovenski standard je istoveten z: EN ISO 105-J03:2009
ICS:
59.080.01 Tekstilije na splošno Textiles in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 105-J03
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2009
ICS 59.080.01 Supersedes EN ISO 105-J03:1997
English Version
Textiles - Tests for colour fastness - Part J03: Calculation of
colour differences (ISO 105-J03:2009)
Textiles - Essais de solidité des teintures - Partie J03: Textilien - Farbechtheitsprüfungen - Teil J03:
Calcul des écarts de couleur (ISO 105-J03:2009) Berechnungen von Farbdifferenzen (ISO 105-J03:2009)
This European Standard was approved by CEN on 19 September 2009.
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 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 Standard 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 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 United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 105-J03:2009: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
This document (EN ISO 105-J03:2009) has been prepared by Technical Committee ISO/TC 38 "Textiles" in
collaboration with Technical Committee CEN/TC 248 “Textiles and textile 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 2010.
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 Internal 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, Malta, 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.
INTERNATIONAL ISO
STANDARD 105-J03
Second edition
2009-10-01
Textiles — Tests for colour fastness —
Part J03:
Calculation of colour differences
Textiles — Essais de solidité des teintures —
Partie J03: Calcul des écarts de couleur
Reference number
ISO 105-J03:2009(E)
©
ISO 2009
ISO 105-J03:2009(E)
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ii © ISO 2009 – All rights reserved
ISO 105-J03:2009(E)
Contents Page
Foreword .iv
1 Scope.1
2 Principle.1
3 Procedure.2
3.1 Calculation of CIELAB values .2
3.2 Calculation of CIELAB colour differences values.3
3.3 Calculation of the CMC colour difference, ∆E (l:c).4
cmc
4 Test report.5
Annex A (informative) Interpretation of results .6
Annex B (informative) Representative test data .7
Annex C (informative) Computer program for calculating colour difference .8
Bibliography.10
ISO 105-J03:2009(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide 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 that 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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 105-J03 was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 1, Tests for
coloured textiles and colorants.
This second edition cancels and replaces the first edition (ISO 105-J03:1995), of which it constitutes a
technical revision and incorporates ISO 105-J03:1995/Cor.1:1996 and ISO 105-J03:1995/Cor.2:2006.
Subclause 3.1 has been replaced with the current CIE recommended form. The equations produce identical
results, but the decimal numbers are replaced by fractions, so as not to limit precision.
ISO 105 was previously published in thirteen “parts”, each designated by a letter (e.g. “Part A”), with
publication dates between 1978 and 1985. Each part contained a series of “sections”, each designated by the
respective part letter and by a two-digit serial number (e.g. “Section A01”). These sections are now being
republished as separate documents, themselves designated “parts” but retaining their earlier alphanumeric
designations. A complete list of these parts is given in ISO 105-A01.
iv © ISO 2009 – All rights reserved
INTERNATIONAL STANDARD ISO 105-J03:2009(E)
Textiles — Tests for colour fastness —
Part J03:
Calculation of colour differences
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 ∆Ε (l:c) for the total
cmc
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 difference. 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 calculating colour difference.
2 Principle
1)
The CIE 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, ∆Ε , which describes the colour difference between a sample and a reference in
cmc
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 reference. The ellipsoid semi-axes (lS , cS and S ) used to derive ∆Ε
L c H cmc
provide 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 ∆Ε describes an ellipsoidal boundary (with axes in the directions of lightness, chroma and
cmc
hue) centred about a reference. The agreed-upon ∆Ε acceptability tolerance describes a volume within
cmc
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 the specimen. These are as follows.
a) A lightness component that is weighted by a lightness tolerance (∆L*/lS ). This is represented as
L
∆L .
cmc
If the ∆L is positive, the specimen is lighter than the reference. If the ∆L is negative, the specimen is
cmc cmc
darker than the reference;
b) A chroma component that is weighted by the chroma tolerance (∆C* /cS ). This is represented as ∆C .
ab c cmc
If the ∆C is positive, the specimen is more chromatic than the reference. If the ∆C is negative, the
cmc cmc
specimen is less chromatic than the reference;
1) Commission Internationale de l'Éclairage, Central Bureau, Kegelgasse 27, A-1030 Vienna, Austria.
ISO 105-J03:2009(E)
c) A hue component that is weighted by the hue tolerance (∆H* /S ). This is represented as ∆H .
ab H cmc
If the ∆H is positive, the hue difference of the specimen is anti-clockwise from the reference in the CIELAB
cmc
a*, b* diagram. If the ∆H is negative, the hue difference of the specimen is clockwise from the reference in
cmc
the CIELAB a*, b* diagram.
3 Procedure
3.1 Calculation of CIELAB values
Calculate the CIELAB L*, a*, b*, C* , h values from the X, Y, Z tristimulus values for both the reference and
ab ab
specimen as follows:
⎡⎤
Lf*1=−16Q 16
()
y
⎣⎦
⎡⎤
af*=−500QfQ
()
()
x y
⎣⎦
⎡⎤
bf*=−200Q fQ
()
()
yz
⎣⎦
where
QX==/;X Q Y/Y;Q=Z/Z
() ( ) ( )
x ny n z n
and
1/3 3
fQ()=>()Q ifQ (6/29)
ii i
else
fQ=+(841/108)Q 4/29 ifQ u (6/29)
()
ii i
where
i varies as X, Y, and Z
1/2
Ca**=+b*
ab()
hb= arctan(
...
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