SIST EN ISO 18314-3:2023
(Main)Analytical colorimetry - Part 3: Special indices (ISO 18314-3:2022)
Analytical colorimetry - Part 3: Special indices (ISO 18314-3:2022)
This document specifies different methods of calculating special indices, which are generally used to describe lightness respectively jetness of samples including chroma or hue within one colour-coordinate.
This document is applicable to tristimulus values and chromaticity coordinates calculated using colour-matching functions of the standard colorimetric system of the CIE 1931 (2°) or CIE 1964 (10°). It is used for the specification of colour stimuli perceived as belonging to a reflecting or transmitting object where a one-dimensional value is required.
Analytische Farbmessung - Teil 3: Spezielle Indices (ISO 18314-3:2022)
Dieses Dokument legt verschiedene Verfahren zur Berechnung spezieller Indices fest, die im Allgemeinen verwendet werden, um die Helligkeit und Schwarztiefe von Proben einschließlich Buntheit oder Buntton innerhalb eines Farbortes zu beschreiben.
Dieses Dokument ist anwendbar auf Normfarbwerte und Normfarbwertanteile, die unter Verwendung von Spektralwertfunktionen des Normvalenzsystems der CIE 1931 (2°) oder CIE 1964 (10°) berechnet wurden. Er wird zur Spezifikation von Farbreizen, die als einem reflektierenden oder transmittierenden Objekt zugehörig wahrgenommen werden, verwendet, wo ein eindimensionaler Wert erforderlich ist.
Analyse colorimétrique - Partie 3: Indices spéciaux (ISO 18314-3:2022)
Le présent document spécifie les différentes méthodes de calcul des indices spéciaux qui sont généralement employés pour décrire la clarté ou la profondeur du noir d’échantillons avec la chroma ou la teinte pour une coordonnée chromatique.
Le présent document est applicable aux composantes trichromatiques et aux coordonnées trichromatiques calculées à l’aide de fonctions colorimétriques du système de référence colorimétrique CIE 1931 (2°) ou CIE 1964 (10°). Il peut être utilisé pour la spécification de stimulus de couleur se rapportant à des objets qui réfléchissent ou qui transmettent la lumière, pour lesquels une valeur unidimensionnelle est nécessaire.
Analizna kolorimetrija - 3. del: Posebni indeksi (ISO 18314-3:2022)
Ta dokument določa različne metode izračunavanja posebnih indeksov, ki se običajno uporabljajo za opisovanje svetlosti oziroma temnosti vzorcev, vključno s kromatskimi lastnostmi ali odtenki znotraj ene barvne koordinate.
Ta dokument se uporablja za trikromatske vrednosti in kromatske koordinate, izračunane s funkcijami ujemanja barv v skladu s standardnim kolorimetričnim sistemom iz standarda CIE 1931 (2°) ali CIE 1964 (10°). Uporablja se za specifikacijo barvnih stimulov, dojetih kot refleksni ali oddajni predmeti, pri čemer je zahtevana enodimenzionalna vrednost.
General Information
- Status
- Published
- Public Enquiry End Date
- 02-Mar-2022
- Publication Date
- 04-Jan-2023
- Technical Committee
- PIP - Pigments and extenders
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 21-Dec-2022
- Due Date
- 25-Feb-2023
- Completion Date
- 05-Jan-2023
Relations
- Replaces
SIST EN ISO 18314-3:2018 - Analytical colorimetry - Part 3: Special indices (ISO 18314-3:2015) - Effective Date
- 01-Feb-2023
Overview
EN ISO 18314-3:2022 - Analytical colorimetry - Part 3: Special indices defines standardized methods for calculating one-dimensional colour indices used to describe lightness/jetness, chroma and hue contributions within a single colour coordinate. The standard applies to tristimulus values and chromaticity coordinates computed with the CIE 1931 (2°) or CIE 1964 (10°) colour-matching functions and is intended for colour stimuli perceived as belonging to reflecting or transmitting objects where a single index is required.
Key topics and technical requirements
- Scope & applicability
- Indices are applicable to measurements based on standard observers (2°/10°) and standard illuminant D65 where relevant.
- Specified indices and formulas
- CIE whiteness index (W) - formula and recommended parameter values for D65/2° and D65/10°.
- Yellowness index (YI) - formula with coefficients (a, b) for 2° and 10° observers (aligns with ASTM E313–20 and DIN 6167).
- Blackness (M) and greyness (G) values - both hue-independent and hue-dependent forms, including absolute hue contribution terms (dM, dG). Hue-dependent forms account for blue/brown shifts.
- Flop-index (FI) - a measure of angular lightness variation for near-neutral metallic shades using CIELAB L*(ε) at specified aspecular angles.
- Measurement considerations
- Indices are calculated from tristimulus (X, Y, Z) and chromaticity (x, y) data.
- Annex A discusses metrological considerations for low-radiance (jetness) measurement, recommending instrument geometries (e.g., 45°:0° spectrophotometry) and reproducibility targets for Y.
- Normative references
- Cross-references to ISO 18451-1 (terminology) and recognition of related documents (CIE, ASTM, DIN).
Applications and users
- Who uses it
- Pigment, dye and extender manufacturers; paint, coatings and plastics producers; textile and printing quality labs; colour measurement labs; research groups and standards bodies.
- Practical uses
- Quality control and specification of whiteness, yellowness, jetness/blackness and grey balance.
- Comparative evaluation of metallic effect pigments (flop-index) and angular lightness behavior.
- Converting spectral or tristimulus measurements into single-value indices for specification sheets, tolerancing and supplier contracts.
Related standards
- ISO 18314 series (analytical colorimetry)
- ISO 18451-1 (terminology)
- CIE standards (CIE 1931, CIE 1964, CIE whiteness guidance)
- ASTM E313–20 (yellowness index methods)
- Relevant national standards cited (e.g., DIN 55979, DIN 6167)
Keywords: EN ISO 18314-3:2022, Analytical colorimetry, special indices, tristimulus values, chromaticity coordinates, CIE 1931, CIE 1964, whiteness index, yellowness index, blackness value, greyness value, flop-index, pigment quality control.
Frequently Asked Questions
SIST EN ISO 18314-3:2023 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Analytical colorimetry - Part 3: Special indices (ISO 18314-3:2022)". This standard covers: This document specifies different methods of calculating special indices, which are generally used to describe lightness respectively jetness of samples including chroma or hue within one colour-coordinate. This document is applicable to tristimulus values and chromaticity coordinates calculated using colour-matching functions of the standard colorimetric system of the CIE 1931 (2°) or CIE 1964 (10°). It is used for the specification of colour stimuli perceived as belonging to a reflecting or transmitting object where a one-dimensional value is required.
This document specifies different methods of calculating special indices, which are generally used to describe lightness respectively jetness of samples including chroma or hue within one colour-coordinate. This document is applicable to tristimulus values and chromaticity coordinates calculated using colour-matching functions of the standard colorimetric system of the CIE 1931 (2°) or CIE 1964 (10°). It is used for the specification of colour stimuli perceived as belonging to a reflecting or transmitting object where a one-dimensional value is required.
SIST EN ISO 18314-3:2023 is classified under the following ICS (International Classification for Standards) categories: 17.180.20 - Colours and measurement of light; 87.060.10 - Pigments and extenders. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 18314-3:2023 has the following relationships with other standards: It is inter standard links to SIST EN ISO 18314-3:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN ISO 18314-3:2023 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2023
Nadomešča:
SIST EN ISO 18314-3:2018
Analizna kolorimetrija - 3. del: Posebni indeksi (ISO 18314-3:2022)
Analytical colorimetry - Part 3: Special indices (ISO 18314-3:2022)
Analytische Farbmessung - Teil 3: Spezielle Indices (ISO 18314-3:2022)
Analyse colorimétrique - Partie 3: Indices spéciaux (ISO 18314-3:2022)
Ta slovenski standard je istoveten z: EN ISO 18314-3:2022
ICS:
17.180.20 Barve in merjenje svetlobe Colours and measurement of
light
87.060.10 Pigmenti in polnila Pigments and extenders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 18314-3
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2022
EUROPÄISCHE NORM
ICS 87.060.10 Supersedes EN ISO 18314-3:2018
English Version
Analytical colorimetry - Part 3: Special indices (ISO 18314-
3:2022)
Analyse colorimétrique - Partie 3: Indices spéciaux Analytische Farbmessung - Teil 3: Spezielle Indices
(ISO 18314-3:2022) (ISO 18314-3:2022)
This European Standard was approved by CEN on 22 November 2022.
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-CENELEC 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-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18314-3:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 18314-3:2022) has been prepared by Technical Committee ISO/TC 256
"Pigments, dyestuffs and extenders" in collaboration with Technical Committee CEN/TC 298 “Pigments
and extenders” the secretariat of which is held by DIN.
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 2023, and conflicting national standards shall be
withdrawn at the latest by May 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 18314-3:2018.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 18314-3:2022 has been approved by CEN as EN ISO 18314-3:2022 without any
modification.
INTERNATIONAL ISO
STANDARD 18314-3
Second edition
2022-11
Analytical colorimetry —
Part 3:
Special indices
Analyse colorimétrique —
Partie 3: Indices spéciaux
Reference number
ISO 18314-3:2022(E)
ISO 18314-3:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
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Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 18314-3:2022(E)
Contents Page
Foreword .iv
1 S c op e . 1
2 Nor m at i ve r ef er enc e s . 1
3 Terms and definitions . 1
4 S ymbols and abbreviated terms.1
5 C IE whiteness index . 2
6 Yel low ne s s i nde x . 2
7 Bl ac k ne s s v a lue s . 2
7.1 G eneral . 2
7.2 H ue independent blackness value, M . 3
Y
7.3 H ue dependent blackness value, M . 3
C
7.4 A bsolute contribution of hue, dM . 3
8 Gr ey ne s s v a lue s . . 3
8.1 General . 3
8.2 H ue independent greyness value, G . 3
Y
8.3 H ue dependent greyness value, G . 3
C
8.4 A bsolute contribution of hue, dG . 3
9 F lop -i nde x . . 4
Annex A (informative) Considerations regarding black values . 5
Bibliography . 6
iii
ISO 18314-3:2022(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
organizati
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기사 제목 : SIST EN ISO 18314-3:2023 - 분석용 색채측정 - 제3부 : 특수 지수 (ISO 18314-3:2022) 기사 내용 : 이 문서는 일반적으로 한 개의 색상 좌표 내에서 표면의 밝기 또는 짙음을 나타내는데 사용되는 크로마나 색조를 포함한 샘플의 특수 지수를 계산하는 다양한 방법을 명시합니다. 이 문서는 CIE 1931 (2°) 또는 CIE 1964 (10°) 표준 색채계의 색상 일치 함수를 사용하여 계산된 삼원원 값과 색도 좌표에 적용됩니다. 이 문서는 투과 또는 반사 물체에 속하는 것으로 인지되는 색 자극의 명세에 사용되며, 일차원 값이 필요한 경우에 사용됩니다.
The article discusses a document called SIST EN ISO 18314-3:2023, which focuses on analytical colorimetry. The document specifies various methods for calculating special indices, which are used to describe lightness and jetness of samples with regard to chroma or hue within a single color-coordinate. The document is applicable to tristimulus values and chromaticity coordinates that are calculated using color-matching functions from the CIE 1931 (2°) or CIE 1964 (10°) standard colorimetric systems. It is used for specifying the color of objects that reflect or transmit light and require a one-dimensional value.
記事のタイトル：SIST EN ISO 18314-3:2023 - 分析カラーメトリー - 第3部：特殊な指標（ISO 18314-3:2022） 記事の内容：この文書は、一つの色座標内で明度または濃淡を示すために一般的に使用される、クロマや色相を含むサンプルの特殊な指標を計算するさまざまな方法について規定しています。 この文書は、CIE 1931（2°）またはCIE 1964（10°）の標準色彩計測システムの色合い関数を使用して計算された三刺激値と色度座標に適用されます。1次元の値が必要な光を反射または透過するオブジェクトの色の仕様に使用されます。
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