EN ISO 18314-1:2018

Analytical colorimetry - Part 1: Practical colour measurement (ISO 18314-1:2015)

ISO 18314-1:2015 specifies the method for determining the colour coordinates of a paint film. This method is only applicable to paint films that appear to be uniformly of one colour, i.e. monochromatic, when examined with normal vision. Paint films that do not completely hide a non-transparent substrate represent an opaque system and can be measured by using the procedure in this part of ISO 18314.
Luminescent paint films, transparent paint films, and translucent paint films (for example for display or lamp glass), retroreflecting paint films (for example for traffic signs), and metallic paint films are outside the scope of this part of ISO 18314.

Analytische Farbmessung - Teil 1: Praktische Farbmessung (ISO 18314-1:2015)

Analyse colorimétrique - Partie 1: Mesurage pratique de la couleur (ISO 18314-1:2015)

La présente partie de l'ISO 18314 spécifie la méthode de détermination des coordonnées colorimétriques d'un feuil de peinture. Cette méthode n'est applicable qu'aux feuils de peinture dont la couleur semble uniforme à l'œil nu, c'est-à-dire aux feuils de peinture monochromatiques. Les feuils de peinture dont le pouvoir couvrant n'est pas suffisant pour masquer complètement un subjectile non transparent constituent un système opaque et peuvent être analysés en utilisant la méthode spécifiée dans la présente partie de l'ISO 18314.
Les feuils de peinture luminescents, transparents et translucides (par exemple, ceux sur un écran ou un verre d'ampoule), les feuils de peinture rétroréfléchissants (par exemple, ceux sur les panneaux de signalisation routière), ainsi que les feuils de peinture métalliques ne sont pas couverts par le domaine d'application de la présente partie de l'ISO 18314.

Analizna kolorometrija - 1. del: Praktično merjenje barve (ISO 18314-1:2015)

ISO 18314-1:2015 določa metodo za določanje barvnih koordinat barvne plasti. Ta metoda se uporablja samo za barvne plasti, ki se zdijo enotno enobarvne, tj. monokromatske, kadar se preučujejo z običajnim vidom. Barvne plasti, ki neprosojne podlage ne prikrivajo povsem, predstavljajo prosojen sistem in jih je mogoče izmeriti z uporabo postopka v tem delu standarda ISO 18314.
Luminescenčne, prosojne in prozorne barvne plasti (na primer za steklo za zaslone ali sijalke), retroreflekcijske barvne plasti (na primer za prometne znake) ter kovinske barvne plasti so zunaj področja uporabe tega dela standarda ISO 18314.

General Information

• Status: Published
• Publication Date: 02-Oct-2018
• Withdrawal Date: 29-Apr-2019
• ICS: 87.060.10 - Pigments and extenders
• Technical Committee: CEN/TC 298 - Pigments and extenders
• Drafting Committee: CEN/TC 298 - Pigments and extenders
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 03-Oct-2018
• Due Date: 15-Jan-2020
• Completion Date: 03-Oct-2018
• Ref Project: SIST EN ISO 18314-1:2018 - Analytical colorimetry - Part 1: Practical colour measurement (ISO 18314-1:2015)

Relations

• Refers: ISO 1513:2010 - Paints and varnishes — Examination and preparation of test samples
• Effective Date: 09-Feb-2026
• Refers: ISO 1514:2016 - Paints and varnishes — Standard panels for testing
• Effective Date: 09-Feb-2026
• Refers: ISO 15528:2013 - Paints, varnishes and raw materials for paints and varnishes — Sampling
• Effective Date: 09-Feb-2026
• Refers: CEN/TR 15350:2013 - Mechanical vibration - Guideline for the assessment of exposure to hand-transmitted vibration using available information including that provided by manufacturers of machinery
• Effective Date: 28-Jan-2026
• Referred By: EN 13245-1:2025 - Plastics - Unplasticized poly(vinyl chloride) (PVC-U) profiles for building applications - Part 1: Designation of PVC-U profiles
• Effective Date: 28-Jan-2026
• Referred By: EN 15354:2022 - Plastics - Extruded and/or calendered, non-reinforced film and sheeting made of plasticized poly(vinyl chloride) (PVC-P) - Characterization and designation
• Effective Date: 28-Jan-2026
• Referred By: EN 927-7:2020 - Paints and varnishes - Coating materials and coating systems for exterior wood - Part 7: Assessment of knot staining resistance of wood coatings
• Effective Date: 28-Jan-2026
• Referred By: EN 13721:2023 - Furniture - Assessment of the surface reflectance
• Effective Date: 28-Jan-2026
• Referred By: EN 12206-1:2021 - Paints and varnishes - Coating of aluminium and aluminium alloys for architectural purposes - Part 1: Coatings prepared from thermosetting coating powder
• Effective Date: 28-Jan-2026
• Referred By: EN 13245-3:2025 - Plastics - Unplasticized poly(vinyl chloride) (PVC-U) profiles for building applications - Part 3: Designation of PVC-UE profiles
• Effective Date: 28-Jan-2026
• Referred By: CEN/TS 927-15:2024 - Paints and varnishes - Coating materials and coating systems for exterior wood - Part 15: Assessment of bleeding of coloured wood extractives through a coating by means of a water immersion test
• Effective Date: 28-Jan-2026

Overview

EN ISO 18314-1:2018, Analytical colorimetry - Part 1: Practical colour measurement establishes standardized methods for determining the colour coordinates of paint films. Published by CEN, this standard aligns with ISO 18314-1:2015 and provides a recognized framework for practical colour measurement in the coatings industry. The method defined is suitable for monochromatic (uniformly coloured) paint films, including opaque systems where the paint covers the substrate completely or nearly completely. However, it specifically excludes luminescent, transparent, translucent, retroreflective, and metallic paint films.

Consistent colour measurement is critical for quality control, product development, and regulatory compliance in paint and coatings applications. EN ISO 18314-1:2018 guarantees repeatable and accurate results by providing clear instructions for sample preparation, measurement conditions, instrument calibration, and the selection of appropriate measurement geometries.

Key Topics

• Scope of Application
  • Focuses on opaque and monochromatic paint films
  • Not applicable to films with special optical effects (luminescent, metallic, etc.)
• Sample Preparation
  • Follows strict procedures for obtaining representative samples
  • Ensures surfaces are clean and undamaged
  • Adheres to referenced standards for specimen preparation and film thickness
• Instrument Calibration
  • Emphasizes proper white and black calibration routines
  • Recommends periodic control measurements
  • Stresses care in handling, cleaning, and storing calibration standards
• Measuring Conditions
  • Specifies use of standardized illuminants (D65) and observer angles (10°)
  • Recommends CIELAB or DIN 99 colour spaces for calculation and CIEDE2000 formula for colour differences
• Measurement Geometry
  • Explains use of geometries such as di:8°, 45°:0°, and de:8°
  • Advises on selecting geometry based on surface type and intended application
• Equipment
  • Prioritizes spectrophotometers with sufficient spectral range (400-700 nm)
  • Allows for tristimulus colorimeters when metamerism control is not required

Applications

EN ISO 18314-1:2018 is widely used for:

• Quality Control and Assurance
  • Standardizing colour evaluation in production environments
  • Reducing subjectivity and visual inconsistencies
• Product Development
  • Supporting formulation and adjustment of paint colours
• Regulatory Compliance
  • Meeting national and international standards for coatings testing
• Purchasing and Specification
  • Harmonizing requirements and expectations across the paint supply chain
• Academic and Industrial Research
  • Providing a unified approach for colour measurement in coatings research

Industries that benefit most include automotive coatings, architectural paints, industrial coatings, and any sector where precise and consistent colour measurement of opaque paint films is essential.

Related Standards

• ISO 1513: Paints and varnishes - Examination and preparation of test samples
• ISO 1514: Paints and varnishes - Standard panels for testing
• ISO 2808: Paints and varnishes - Determination of film thickness
• ISO 15528: Sampling of paints and raw materials
• ISO 11664 series: Colorimetry (illuminants, observers, colour spaces, colour difference formulae)
• DIN 6176: Colour difference evaluation using DIN99
• ISO 18314-2: Analytical colorimetry - Advanced correction and evaluation methods
• ISO 18314-3: Analytical colorimetry - Special indices

EN ISO 18314-1:2018 plays a key role in modern colour quality management, offering a reliable measurement foundation for the international paints and coatings industry. For organizations requiring accurate and reproducible colour results, adherence to this standard is a critical best practice.

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2018
$QDOL]QDNRORURPHWULMDGHO3UDNWLþQRPHUMHQMHEDUYH,62
Analytical colorimetry - Part 1: Practical colour measurement (ISO 18314-1:2015)
Analytische Farbmessung - Teil 1: Praktische Farbmessung (ISO 18314-1:2015)
Analyse colorimétrique - Partie 1: Mesurage pratique de la couleur (ISO 18314-1:2015)
Ta slovenski standard je istoveten z: EN ISO 18314-1:2018
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 18314-1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2018
EUROPÄISCHE NORM
ICS 87.060.10
English Version
Analytical colorimetry - Part 1: Practical colour
measurement (ISO 18314-1:2015)
Analyse colorimétrique - Partie 1: Mesurage pratique Analytische Farbmessung - Teil 1: Praktische
de la couleur (ISO 18314-1:2015) Farbmessung (ISO 18314-1:2015)
This European Standard was approved by CEN on 19 February 2018.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18314-1:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 18314-1:2015 has been prepared by Technical Committee 256 "Pigments, dyestuffs and
extenders” of the International Organization for Standardization (ISO) and has been taken over as
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 April 2019, and conflicting national standards shall be
withdrawn at the latest by April 2019.
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.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 18314-1:2015 has been approved by CEN as EN ISO 18314-1:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 18314-1
First edition
2015-06-01
Analytical colorimetry —
Part 1:
Practical colour measurement
Analyse colorimétrique —
Partie 1: Mesurage pratique de la couleur
Reference number
ISO 18314-1:2015(E)
©
ISO 2015
ISO 18314-1:2015(E)
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, 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.
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ii © ISO 2015 – All rights reserved

ISO 18314-1:2015(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Sample preparation . 1
4 Sample measurement . 2
4.1 General . 2
4.2 Recommended colourimetric conditions . 2
5 Calibration . 2
5.1 General . 2
5.2 Environmental conditions . 2
5.3 White calibration . 2
5.4 Black calibration . 3
5.5 Control measurement . 3
5.6 Storage of the calibration standards . 3
6 Apparatus . 3
6.1 Spectrophotometer . 3
6.2 Tristimulus colourimeter . 3
7 Selection of appropriate measurement geometry . 3
Bibliography . 5
ISO 18314-1:2015(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
...