ISO 12625-16:2024

Tissue paper and tissue products — Part 16: Determination of optical properties — Diffuse reflectance method for opacity (paper backing)

This document specifies the testing procedures for the instrumental determination of the opacity of tissue paper or tissue products by diffuse reflectance using a paper backing. This document contains specific instructions for the preparation of test pieces of single-ply and multi-ply products, where special preparation/procedures might be necessary. It can be used to determine the opacity of tissue paper and tissue products containing fluorescent whitening agents, provided the UV content of the radiation incident on the test piece has been adjusted to conform to that in the CIE illuminant C using a fluorescent reference standard provided by an authorized laboratory as described in ISO 2470-1.

Papier tissue et produits tissue — Partie 16: Détermination des propriétés optiques — Méthode par réflectance diffuse de l'opacité sur fond papier

Le présent document spécifie les modes opératoires d’essai pour la détermination instrumentale de l’opacité du papier tissue ou des produits tissue, par réflectance diffuse, en utilisant un fond papier. Le présent document contient également des instructions spécifiques pour la préparation des éprouvettes des produits à pli unique et des produits multiplis, lorsque des préparations/modes opératoires spécifiques peuvent se révéler nécessaires. Elle peut être utilisée pour déterminer l’opacité du papier tissue ou de produits tissue contenant des agents d’azurage fluorescents, à condition que la teneur en UV du rayonnement incident sur l’éprouvette ait été ajustée pour être rendue conforme à celle de l’illuminant C de la CIE au moyen d’un étalon de référence fluorescent fourni par un laboratoire agréé, tel que décrit dans l’ISO 2470-1.

General Information

• Status: Published
• Publication Date: 02-May-2024
• ICS: 85.080.20 - Tissue paper
• Technical Committee: ISO/TC 6/SC 2 - Test methods and quality specifications for paper and board
• Drafting Committee: ISO/TC 6/SC 2 - Test methods and quality specifications for paper and board
• Current Stage: 6060 - International Standard published
• Start Date: 03-May-2024
• Due Date: 25-Jun-2024
• Completion Date: 03-May-2024

Relations

• Consolidates: ISO 3877-4:1984/Amd 1:2020 - Tyres, valves and tubes — List of equivalent terms — Part 4: Solid tyres — Amendment 1
• Effective Date: 06-Jun-2022
• Revises: ISO 12625-16:2015 - Tissue paper and tissue products — Part 16: Determination of optical properties — Opacity (paper backing) — Diffuse reflectance method
• Effective Date: 06-Jun-2022

Standards Content (Sample)

International
Standard
ISO 12625-16
Second edition
Tissue paper and tissue products —
2024-05
Part 16:
Determination of optical properties
— Diffuse reflectance method for
opacity (paper backing)
Papier tissue et produits tissue —
Partie 16: Détermination des propriétés optiques — Méthode par
réflectance diffuse de l'opacité sur fond papier
Reference number
ISO 12625-16:2024(en) © ISO 2024

---------------------- Page: 1 ----------------------
ISO 12625-16:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland

© ISO 2024 – All rights reserved
ii

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ISO 12625-16:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 3
5.1 Reflectometer .3
5.2 Reference standards .3
5.3 Working standards .3
5.4 Black cavity . .3
6 Sampling . 3
7 Conditioning . 4
8 Preparation of test pieces . 4
9 Procedure . 4
10 Calculation . 5
11 Test report .
...

Norme
internationale
ISO 12625-16
Deuxième édition
Papier tissue et produits tissue —
2024-05
Partie 16:
Détermination des propriétés
optiques — Méthode par réflectance
diffuse de l'opacité sur fond papier
Tissue paper and tissue products —
Part 16: Determination of optical properties — Diffuse
reflectance method for opacity (paper backing)
Numéro de référence
ISO 12625-16:2024(fr) © ISO 2024

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ISO 12625-16:2024(fr)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2024
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: [phone]
E-mail: [e-mail]
Web: www.iso.org
Publié en Suisse

© ISO 2024 – Tous droits réservés
ii

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ISO 12625-16:2024(fr)
Sommaire Page
Avant-propos .iv
Introduction .v
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Principe. 3
5 Appareillage . 3
5.1 Réflectomètre .3
5.2 Étalons de référence .3
5.3 Étalons de travail .3
5.4 Corps noir .3
6 Échantillonnage . 4
7 Conditionnement . 4
8 Préparation des éprouvettes . 4
9 Mode opératoire . 4
10 Calculs . 5
11 Rapport d’essai .
...

FINAL DRAFT
International
Standard
ISO/FDIS 12625-16
ISO/TC 6/SC 2
Tissue paper and tissue products —
Secretariat: SIS
Part 16:
Voting begins on:
2024-02-07
Determination of optical properties
— Diffuse reflectance method for
Voting terminates on:
2024-04-03
opacity (paper backing)
Papier tissue et produits tissue —
Partie 16: Détermination des propriétés optiques — Méthode par
réflectance diffuse de l'opacité sur fond papier
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 SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 12625-16:2024(en) © ISO 2024

---------------------- Page: 1 ----------------------
FINAL DRAFT
ISO/FDIS 12625-16:2024(en)
International
Standard
ISO/FDIS 12625-16
ISO/TC 6/SC 2
Tissue paper and tissue products —
Secretariat: SIS
Part 16:
Voting begins on:
Determination of optical properties
— Diffuse reflectance method for
Voting terminates on:
opacity (paper backing)
Papier tissue et produits tissue —
Partie 16: Détermination des propriétés optiques — Méthode par
réflectance diffuse de l'opacité sur fond papier
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
COPYRIGHT PROTECTED DOCUMENT
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 12625-16:2024(en) © ISO 2024

© ISO 2024 – All rights reserved
ii

---------------------- Page: 2 ----------------------
ISO/FDIS 12625-16:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 3
5.1 Reflectometer .3
5.2 Reference standards .3
5.3 Working standards .
...

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Tissue paper and tissue products —
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Part 16:
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Determination of optical properties — Opacity (paper backing) —
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Diffuse reflectance method for opacity (paper backing)
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Partie 16: Détermination des propriétés optiques — Méthode par réflectance diffuse de l'opacité sur fond papier
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ISO/FDIS 12625-16:2023(E2024(en) Formatted: Font: 11 pt, Bold
Formatted: Font: 11 pt, Bold
Formatted: Font: Bold
© ISO 20232024
Formatted: HeaderCentered
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication Formatted: Right: 1.5 cm, Bottom: 1 cm, Gutter: 0 cm,
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, Header distance from edge: 1.27 cm, Footer distance
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO from edge: 0.5 cm
at the address below or ISO’s member body in the country of the requester.
Commented [eXtyles1]: The reference is to a withdrawn
standard which has been replaced
ISO copyright office

CP 401 • Ch. de Blandonnet 8 ISO 20344, Personal protective equipment — Test methods
for footwear
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Formatted: Default Paragraph Font
EmailE-mail: [e-mail]
Formatted: French (France)
Website: www.iso.orgwww.iso.org
Formatted: French (France)
Published in Switzerland
Formatted: French (France)
Formatted: FooterPageRomanNumber
ii © ISO 2023 – All rights reserved
© ISO 2024 – All rights reserved

ii

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ISO/FDIS 12625-16:2023(E2024(en) Formatted: Font: 11 pt, Bold
Formatted: Font: 11 pt, Bold
Formatted: Font: Bold
Contents
Formatted: HeaderCentered, Left
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Principle . 3
5 Apparatus . 3
5.1 Reflectometer . 3
5.2 Reference standards . 4
5.3 Working standards . 4
5
...