EN ISO 12625-7:2014

SLOVENSKI STANDARD
01-september-2014
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SIST EN ISO 12625-7:2007
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Tissue paper and tissue products - Part 7: Determination of optical properties -
Measurement of brightness and colour with D65/10° (outdoor daylight) (ISO 12625-
7:2014)
Tissue-Papier und Tissue-Produkte - Bestimmung der optischen Eigenschaften - Teil 7:
Bestimmung der optischen Eigenschaften - Brightness und Farbmessung mit Lichtart
D65/10° (Außentageslicht) (ISO 12625-7:2014)
Papier tissue et produits tissues - Partie 7: Détermination des propriétés optiques -
Mesurage de blancheur et de coleur avec l'illuminant D65/10° (lumière du jour
extérieure) (ISO 12625-7:2014)
Ta slovenski standard je istoveten z: EN ISO 12625-7:2014
ICS:
85.080.20 Tissue papir Tissue paper
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 12625-7
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2014
ICS 85.060 Supersedes EN ISO 12625-7:2007
English Version
Tissue paper and tissue products - Part 7: Determination of
optical properties - Measurement of brightness and colour with
D65/10° (outdoor daylight) (ISO 12625-7:2014)
Papier tissue et produits tissue - Partie 7: Détermination Tissue-Papier und Tissue-Produkte - Teil 7: Bestimmung
des propriétés optiques - Mesurage du degré de blancheur der optischen Eigenschaften - Brightness und Farbmessung
et de la couleur avec l'illuminant D65/10° (lumière du jour mit Lichtart D65/10° (Außentageslicht) (ISO 12625-7:2014)
extérieure) (ISO 12625-7:2014)
This European Standard was approved by CEN on 17 April 2014.

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, 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: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12625-7:2014 E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 12625-7:2014) has been prepared by Technical Committee CEN/TC 172 “Pulp, paper
and board” the secretariat of which is held by DIN, in collaboration with Technical Committee ISO/TC 6
“Paper, board and pulps“.
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 November 2014, and conflicting national standards shall be withdrawn
at the latest by November 2014.
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 12625-7:2007.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 12625-7:2014 has been approved by CEN as EN ISO 12625-7:2014 without any modification.

INTERNATIONAL ISO
STANDARD 12625-7
Second edition
2014-05-01
Tissue paper and tissue products —
Part 7:
Determination of optical properties —
Measurement of brightness and colour
with D65/10° (outdoor daylight)
Papier tissue et produits tissue —
Partie 7: Détermination des propriétés optiques — Mesurage du
degré de blancheur et de la couleur avec l’illuminant D65/10°
(lumière du jour extérieure)
Reference number
ISO 12625-7:2014(E)
©
ISO 2014
ISO 12625-7:2014(E)
© ISO 2014
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.
ISO copyright office
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Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved

ISO 12625-7:2014(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 3
5 Apparatus . 3
6 Calibration . 4
7 Sampling . 4
8 Conditioning . 5
9 Preparation of test pieces . 5
10 Procedure. 5
10.1 General . 5
10.2 Measurement of D65 brightness . 5
10.3 Measurement of colour (D65/10°) . 5
11 Calculation . 6
11.1 D65 brightness . 6
11.2 Colour (D65/10°) . 6
12 Test report . 7
Annex A (informative) Precision . 8
Bibliography .11
ISO 12625-7:2014(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).
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 12625-7 was prepared by European Committee for Standardization (CEN) Technical Committee
CEN/TC 172 Pulp, paper and board, in collaboration with Technical Committee ISO/TC 6, Paper, board
and pulps, Subcommittee SC 2, Test methods and quality specifications for paper and board, in accordance
with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 12625-7:2007), which has been technically
revised.
ISO 12625 consists of the following parts, under the general title Tissue paper and tissue products:
— Part 1: General guidance on terms;
— Part 3: Determination of thickness, bulking thickness, apparent bulk density and bulk;
— Part 4: Determination of tensile strength, stretch at break and tensile energy absorption;
— Part 5: Determination of wet tensile strength;
— Part 6: Determination of grammage;
— Part 7: Determination of optical properties — Measurement of brightness and colour with D65/10°
(outdoor daylight);
— Part 8: Water-absorption time and water-absorption capacity; basket-immersion test method;
— Part 9: Determination of ball burst strength;
— Part 11: Determination of wet ball burst strength;
— Part 12: Determination of tensile strength of perforated lines — Calculation of perforation efficiency;
— Part 15 Determination of optical properties — Measurement of brightness and colour with C/2° (indoor
daylight)
— Part 16 Determination of optical properties — Opacity (paper backing) — Diffuse reflectance method
iv © ISO 2014 – All rights reserved

ISO 12625-7:2014(E)
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