SIST EN ISO 12625-6:2017

Tissue paper and tissue products - Part 6: Determination of grammage (ISO 12625-6:2016)

ISO 12625-6:2016 specifies a test method for the determination of grammage of tissue paper and tissue products.

Tissue-Papier und Tissue-Produkte - Teil 6: Bestimmung der flächenbezogenen Masse (ISO 12625-6:2016)

Dieses Dokument legt ein Prüfverfahren zur Bestimmung der flächenbezogenen Masse von Tissue-Papier und Tissue-Produkten fest.

Papier tissue et produits tissue - Partie 6: Détermination du grammage (ISO 12625-6:2016)

ISO 12625-6:2016 spécifie une méthode d'essai pour la détermination du grammage du papier tissue et des produits tissue.

Tissue papir in proizvodi iz tissue papirja - 6. del: Ugotavljanje gramature (ISO 12625-6:2016)

Ta dokument določa preskusno metodo za določanje gramature tissue papirja in proizvodov iz tissue papirja.

General Information

• Status: Published
• Public Enquiry End Date: 29-Sep-2015
• Publication Date: 19-Feb-2017
• ICS: 85.080.20 - Tissue paper
• Technical Committee: VPK - Pulp, paper, board and products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 03-Jan-2017
• Due Date: 10-Mar-2017
• Completion Date: 20-Feb-2017
• Ref Project: EN ISO 12625-6:2016 - Tissue paper and tissue products - Part 6: Determination of grammage (ISO 12625-6:2016)

Relations

• Replaces: SIST EN ISO 12625-6:2005 - Tissue paper and tissue products - Part 6: Determination of grammage (ISO 12625-6:2005)
• Effective Date: 01-Mar-2017

Overview

EN ISO 12625-6:2016 - published by CEN and identical to ISO 12625-6:2016 - specifies a standardized test method for the determination of grammage (mass per unit area) of tissue paper and tissue products. Grammage is expressed in grams per square metre (g/m²). The document defines the principle, required apparatus, sampling and conditioning, preparation of test pieces, measurement procedure, calculation of results (including mean and standard deviation), and reporting. This edition (2016) supersedes the 2005 version and includes updated precision data.

Key Topics and Requirements

• Scope and principle
  • Measure the mass and area of one or more test pieces and calculate grammage as mass/area.
• Apparatus
  • Balance with 0.001 g readability.
  • Cutting device capable of producing test pieces with area within ±1.0% of a known area (or individual area measurement where cutting accuracy cannot be achieved).
  • Length measurement device (ruler, digital ruler or scanner) with minimum accuracy of 0.5 mm.
• Sampling and conditioning
  • Lot sampling: follow ISO 186.
  • Conditioning and testing atmosphere: follow ISO 187; condition samples before preparation and keep in the standard atmosphere during testing.
• Preparation of test pieces
  • Test pieces must be free from creases, perforations or visible damage.
  • Minimum individual test-piece area: 100 cm²; a test piece may be composed of several smaller pieces.
  • Cut at least 10 test pieces; determine mass for a minimum total area of 1 000 cm² (or larger convenient area).
  • For uncut finished products, items must lie flat and unstressed; scanners or suitably large rulers may be used to measure area.
• Calculations and precision
  • Calculate grammage for each test piece, then report mean and standard deviation. Annex A provides precision data for the method.

Applications

• Routine quality control and specification verification for tissue producers (toilet tissue, facial tissue, kitchen towels, industrial wipes).
• Incoming material inspection and production monitoring in converting and converting-plant operations.
• Independent testing laboratories and certification bodies validating declared product grammage.
• Procurement and regulatory compliance checks where grammage is a contractual or labeling requirement.

Related Standards

• ISO 12625 series (other parts address additional test methods for tissue products).
• Normative references cited: ISO 186 (sampling) and ISO 187 (conditioning).

Keywords: EN ISO 12625-6:2016, ISO 12625-6:2016, tissue paper, tissue products, determination of grammage, grammage test method, g/m², CEN.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2017
1DGRPHãþD
SIST EN ISO 12625-6:2005
Tissue papir in proizvodi iz tissue papirja - 6. del: Ugotavljanje gramature (ISO
12625-6:2016)
Tissue paper and tissue products - Part 6: Determination of grammage (ISO 12625-
6:2016)
Tissue-Papier und Tissue-Produkte - Teil 6: Bestimmung der flächenbezogenen Masse
(ISO 12625-6:2016)
Papier tissue et produits tissue - Partie 6: Détermination du grammage (ISO 12625-
6:2016)
Ta slovenski standard je istoveten z: EN ISO 12625-6:2016
ICS:
85.080.20 Tissue papir Tissue paper
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 12625-6
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2016
EUROPÄISCHE NORM
ICS 85.060 Supersedes EN ISO 12625-6:2005
English Version
Tissue paper and tissue products - Part 6: Determination
of grammage (ISO 12625-6:2016)
Papier tissue et produits tissue - Partie 6: Tissue-Papier und Tissue-Produkte - Teil 6:
Détermination du grammage (ISO 12625-6:2016) Bestimmung der flächenbezogenen Masse (ISO 12625-
6:2016)
This European Standard was approved by CEN on 21 November 2016.

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
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12625-6:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 12625-6:2016) has been prepared by Technical Committee ISO/TC 6 "Paper,
board and pulps" in collaboration with Technical Committee CEN/TC 172 “Pulp, paper and board” 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 June 2017, and conflicting national standards shall be
withdrawn at the latest by June 2017.
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 12625-6:2005.
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 12625-6:2016 has been approved by CEN as EN ISO 12625-6:2016 without any
modification.
INTERNATIONAL ISO
STANDARD 12625-6
Second edition
2016-12-01
Tissue paper and tissue products —
Part 6:
Determination of grammage
Papier tissue et produits tissue —
Partie 6: Détermination du grammage
Reference number
ISO 12625-6:2016(E)
©
ISO 2016
ISO 12625-6:2016(E)
© ISO 2016, 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 2016 – All rights reserved

ISO 12625-6:2016(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Sampling . 2
7 Conditioning . 2
8 Preparation of test pieces . 2
8.1 General . 2
8.2 Cutting of the test pieces . 3
8.2.1 General. 3
8.2.2 Size of test pieces . 3
8.2.3 Number of test pieces . 3
8.3 Uncut finished products . 3
8.3.1 General. 3
8.3.2 Size of test pieces . 3
8.3.3 Number of test pieces . 3
9 Procedure. 4
9.1 Determination of the mass of the test pieces. 4
9.2 Determination of the area of the test pieces . 4
10 Calculation . 4
10.1 General . 4
10.2 Mean and standard deviation of grammage . 5
11 Test report . 5
Annex A (informative) Precision . 7
Bibliography .10
ISO 12625-6:2016(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 World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.
This document was prepared by the European Committee Standardization (CEN) Technical Committee
CEN/TC 172, Pulp, paper and board, in collaboration with ISO Technical Committee 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 12625-6:2005), which has been
technically revised with the following changes:
a) a new subclause, 8.3, has been added;
b) formulae were added to clarify Clause 10;
c) in Annex A, the precision data has been updated;
d) this document has been editorially updated.
A list of all parts in the ISO 12625 series can be found on the ISO website.
iv © ISO 2016 – All rights reserved

INTERNATIONAL STANDARD ISO 12625-6:2016(E)
Tissue paper and tissue products —
Part 6:
Determination of grammage
1 Scope
This document specifies a test method for the determination of grammage of tissue paper and tissue
products.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the editio
...