oSIST prEN ISO 10545-16:2015

Ceramic tiles - Part 16: Determination of small colour differences and light reflectance values (ISO/DIS 10545-16:2015)

2016-05-14: WI abandonned following cancellation of ISO WI (see ISO notification in dataservice on 2016-05-17).

Keramische Fliesen und Platten - Teil 16: Bestimmung kleiner Farbabweichungen und des Lichtreflexionsgrades (ISO/DIS 10545-16:2015)

Carreaux et dalles céramiques - Partie 16 : Détermination de faibles différences de couleur et .... (ISO/DIS 10545-16:2015)

Keramične ploščice - 16. del: Ugotavljanje majhnih barvnih razlik in vrednosti odboja svetlobe (ISO/DIS 10545-16:2015)

General Information

• Status: Not Published
• Public Enquiry End Date: 29-Jul-2015
• ICS: 91.100.23 - Ceramic tiles
• Technical Committee: IKER - Ceramics
• Current Stage: 98 - Abandoned project (Adopted Project)
• Start Date: 15-May-2024
• Due Date: 20-May-2024
• Completion Date: 15-May-2024
• Ref Project: prEN ISO 10545-16 rev - Ceramic tiles - Part 16: Determination of small colour differences and light reflectance values (ISO/DIS 10545-16:2015)

Relations

• Revised: SIST EN ISO 10545-16:2012 - Ceramic tiles - Part 16: Determination of small colour differences (ISO 10545-16:2010)
• Effective Date: 18-Jan-2023
• Revised: SIST EN ISO 10545-16:2012 - Ceramic tiles - Part 16: Determination of small colour differences (ISO 10545-16:2010)
• Effective Date: 01-Jul-2015

Overview

prEN ISO 10545-16 rev / ISO/DIS 10545-16:2015 is a draft standard developed within CEN/ISO that defines methods to quantify small colour differences between plain-coloured ceramic tiles and to determine the Light Reflectance Value (LRV) of ceramic tile surfaces. The document specifies colourimetric and spectrophotometric measurement principles (CIELAB, CMC ∆E, spectral measurements) and the instrumentation/conditions required for reproducible results. Note: this working item was circulated as a draft in 2015; the WI was reported as abandoned in 2016 following cancellation of the ISO work item.

Key topics and requirements

• Purpose: quantify small colour differences between uniform plain tiles and measure LRV for single- and multi-coloured tile surfaces (including textured surfaces < 2 mm).
• Colour metrics: use CIELAB (L a b*)** values and CMC ∆Ecmc equations to calculate colour differences; results interpreted against an agreed commercial factor (cf) for acceptability.
• LRV definition: proportion of visible light reflected (equivalent to CIE tristimulus Y10 under Illuminant CIE D65 when measured with the correct geometry).
• Instrumentation:
  • Spectrophotometer/spectral instrument capable of producing CIE tristimulus X, Y, Z.
  • Repeatability requirement: colour difference repeatability σ ≤ 0.2 ∆E units (based on five independent measurements).
  • Measurements should include specular component included (SCI); if only specular-excluded (SCE) is available, note this explicitly.
• Standards and references: measurement practice aligned with CIE 15:2004 (Colourimetry) and CIE 130:1998 (reflectance/transmission methods); ISO 105-J03 referenced for colour difference calculations.
• Test procedure highlights: separate procedures for plain coloured tiles and multi-coloured/speckled/textured surfaces; specimen preparation and working standards (e.g., calibrated white plaques) recommended.

Practical applications and users

Who uses it:

• Tile manufacturers and quality control laboratories for production acceptance and batch consistency checks.
• Specifiers, architects and project managers assessing colour match and contrast in finishes.
• Suppliers and testing bodies verifying LRV for accessibility, lighting design and compliance (LRV affects contrast, lighting calculations, and safety). Practical uses:
• Setting and enforcing colour tolerance (∆Ecmc) between reference and production tiles.
• Measuring LRV for interior design, lighting simulation, and building code/contrast requirements.
• Detecting metamerism risks by specifying measurement conditions and documenting illumination and geometry.

Related standards

• ISO 10545 series (parts 1–15, 17… - other tile test methods)
• CIE 15:2004 - Colourimetry
• CIE 130:1998 - Practical methods for reflectance/transmission
• ISO 105-J03:2009 - Calculation of colour differences

Keywords: ceramic tiles, colour differences, LRV, light reflectance value, spectrophotometer, CIELAB, ∆E cmc, CIE D65, metamerism, colour measurement.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2015
.HUDPLþQHSORãþLFHGHO8JRWDYOMDQMHPDMKQLKEDUYQLKUD]OLNLQYUHGQRVWL
RGERMDVYHWOREH,62',6
Ceramic tiles - Part 16: Determination of small colour differences and light reflectance
values (ISO/DIS 10545-16:2015)
Keramische Fliesen und Platten - Teil 16: Bestimmung kleiner Farbabweichungen und
des Lichtreflexionsgrades (ISO/DIS 10545-16:2015)
Carreaux et dalles céramiques - Partie 16 : Détermination de faibles différences de
couleur et . (ISO/DIS 10545-16:2015)
Ta slovenski standard je istoveten z: prEN ISO 10545-16 rev
ICS:
91.100.23 .HUDPLþQHSORãþLFH Ceramic tiles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT INTERNATIONAL STANDARD
ISO/DIS 10545-16
ISO/TC 189 Secretariat: ANSI
Voting begins on: Voting terminates on:
2015-05-21 2015-08-21
Ceramic tiles —
Part 16:
Determination of small colour differences and light
reflectance values
Carreaux et dalles céramiques —
Partie 16: Détermination de faibles différences de couleur
ICS: 91.100.23
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the European Committee for Standardization
(CEN), and processed under the CEN lead mode of collaboration as defined in the
Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member
bodies for a parallel five month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments
received, will be submitted to a parallel two-month approval vote in ISO and
THIS DOCUMENT IS A DRAFT CIRCULATED
formal vote in CEN.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
To expedite distribution, this document is circulated as received from the
IN ADDITION TO THEIR EVALUATION AS
committee secretariat. ISO Central Secretariat work of editing and text
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND composition will be undertaken at publication stage.
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 10545-16:2015(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2015

ISO/DIS 10545-16:2015(E)
© ISO 2015
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
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ii © ISO 2015 – All rights reserved

ISO/DIS 10545-16:2015(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
4.1 Small colour differences . 2
4.2 Light reflectance value . 2
5 Test equipment. 3
5.1 - Type of Instrument for LRV Measurement . 3
5.2 - Type of Instrument for Colour Measurement . 3
5.3 - Instrument Setup . 3
6 Standards . 3
6.1 Standards for LRV measurements . 3
6.2 Reference specimen for small colour differences . 3
7 Procedure. 3
7.1 Test specimens . 3
7.2 Preparation . 4
7.3 Test procedure . 4
7.3.1 Measurement of plain coloured tiles . 4
7.3.2 Measurement of tile having a multicoloured, speckled, or textured surface . 4
8 Calculations and interpretation of results . 4
8.1 Calculations . 4
8.1.1 CIELAB values . 4
8.1.2 CMC colour differences . . . 4
8.1.3 ∆E values . 5
cmc
8.2 Interpretation of results . 5
9 Test report . 5
ISO/DIS 10545-16:2015(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
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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).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
ISO 10545-16 was prepared by Technical Committee ISO/TC 189, Ceramic Tiles,
This third edition cancels and replaces the second edition (ISO 10545-16:2010), which has been
technically revised.
ISO 10545 consists of the following parts, under the general title Ceramic tiles —:
— Part 1: Sampling and basis for acceptance
— Part 2: Determination of dimensions and surface quality
— Part 3: Determination of water absorption, apparent porosity, apparent relative density and bulk density
— Part 4: Determination of modulus of rupture and breaking strength
— Part 5: Determination of impact resistance by coefficient of restitution
— Part 6: Determination of resistance to deep abrasion for unglazed tiles
— Part 7: Determination of resistance to surface abrasion for glazed tiles
— Part 8: Determination of linear thermal expansion
— Part 9: Determination of resistance to thermal shock
— Part 10: Determination of moisture expansion
— Part 11: Determination of crazing resistance for glazed tiles
— Part 12: Determination of frost resistance
— Part 13: Determination of chemical resistance
— Part 14: Determination of resistance to stains
— Part 15: Determination of lead and cadmium given off by glazed tiles
iv © ISO 2015 – All rights reserved

ISO/DIS 10545-16:2015(E)
— Part 16: Determination of small colour differences and light reflectance value
...