ISO/TS 7821:2005

Tobacco and tobacco products — Preparation and constitution of identical samples from the same lot for collaborative studies for the evaluation of test methods

ISO/TS 7821:2005 provides a practical framework for the operations of dividing a lot (not necessarily homogeneous) of tobacco or tobacco products into several similar samples intended for collaborative studies, either within or between laboratories.

Tabac et produits du tabac — Préparation et constitution d'échantillons identiques à partir d'un même lot pour la conduite d'essais comparatifs portant sur la qualité des méthodes d'essai

L'ISO/TS 7821:2005 fournit un cadre pratique aux opérations de division de lot (pas nécessairement homogène) de tabac ou de produits du tabac en plusieurs échantillons similaires destinés à des essais comparatifs de laboratoire ou interlaboratoires.

Tobak - Priprava identičnih vzorcev iz iste serije (dobra praksa za primerljive študije izračunskih metod preskusov)

General Information

• Status: Published
• Publication Date: 16-Feb-2005
• ICS: 65.160 - Tobacco, tobacco products and related equipment
• Technical Committee: ISO/TC 126/SC 1 - Physical and dimensional tests
• Drafting Committee: ISO/TC 126/SC 1 - Physical and dimensional tests
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 25-Jan-2024
• Ref Project: SIST-TS ISO/TS 7821:2008 - Tobacco and tobacco products - Preparation and constitution of identical samples from the same lot for collaborative studies for the evaluation of test methods

Relations

• Revises: ISO/TR 7821:1982 - Tobacco — Preparation and constitution of identical samples from the same lot (Code of practice, for collaborative studies for evaluating methods of test)
• Effective Date: 15-Apr-2008

Standards Content (Sample)

TECHNICAL ISO/TS
SPECIFICATION 7821
First edition
2005-02-15

Tobacco and tobacco products —
Preparation and constitution of identical
samples from the same lot for
collaborative studies for the evaluation of
test methods
Tabac et produits du tabac — Préparation et constitution d'échantillons
identiques à partir d'un même lot pour la conduite d'essais comparatifs
portant sur la qualité des méthodes d'essai




Reference number
ISO/TS 7821:2005(E)
©
ISO 2005

---------------------- Page: 1 ----------------------
ISO/TS 7821:2005(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.


©  ISO 2005
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland

ii © ISO 2005 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/TS 7821:2005(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
In other circumstances, particularly when there is an urgent market requirement for such documents, a
technical committee may decide to publish other types of normative document:
 an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in
an ISO working group and is accepted for publication if it is approved by more than 50 % of the members
of the parent committee casting a vote;
 an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical
committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting
a vote.
An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a
further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is
confirmed, it is reviewed again after a further three years, at which time it must either be transformed into an
International Standard or be withdrawn.
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.
ISO/TS 7821 was prepared by Technical Committee ISO/TC 126, Tobacco and tobacco products,
Subcommittee SC 1, Physical and dimensional tests.
This edition cancels and replaces ISO/TR 7821:1982, which has been technically revised.
© ISO 2005 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO/TS 7821:2005(E)
Introduction
The repeatability and the reproducibility of a particular laboratory method are defined in ISO 3534-1,
ISO 3534-2 and ISO 3534-3. These characteristics may be determined by means of interlaboratory tests as
described in ISO 5725-2.
In addition to the d
...

SLOVENSKI STANDARD
SIST-TS ISO/TS 7821:2008
01-julij-2008
1DGRPHãþD
SIST ISO/TR 7821:1995
7REDN3ULSUDYDLGHQWLþQLKY]RUFHYL]LVWHVHULMHGREUDSUDNVD]DSULPHUOMLYH
ãWXGLMHL]UDþXQVNLKPHWRGSUHVNXVRY
Tobacco and tobacco products - Preparation and constitution of identical samples from
the same lot for collaborative studies for the evaluation of test methods
Ta slovenski standard je istoveten z: ISO/TS 7821:2005
ICS:
65.160 7REDNWREDþQLL]GHONLLQ Tobacco, tobacco products
RSUHPD and related equipment
SIST-TS ISO/TS 7821:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

TECHNICAL ISO/TS
SPECIFICATION 7821
First edition
2005-02-15

Tobacco and tobacco products —
Preparation and constitution of identical
samples from the same lot for
collaborative studies for the evaluation of
test methods
Tabac et produits du tabac — Préparation et constitution d'échantillons
identiques à partir d'un même lot pour la conduite d'essais comparatifs
portant sur la qualité des méthodes d'essai




Reference number
ISO/TS 7821:2005(E)
©
ISO 2005

---------------------- Page: 2 ----------------------

ISO/TS 7821:2005(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.


©  ISO 2005
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland

ii © ISO 2005 – All rights reserved

---------------------- Page: 3 ----------------------

ISO/TS 7821:2005(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
In other circumstances, particularly when there is an urgent market requirement for such documents, a
technical committee may decide to publish other types of normative document:
 an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in
an ISO working group and is accepted for publication if it is approved by more than 50 % of the members
of the parent committee casting a vote;
 an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical
committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting
a vote.
An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a
further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is
confirmed, it is reviewed again after a further three years, at which time it must either be transformed into an
International Standard or be withdrawn.
Attention is drawn to the possibility that some of the elements of this document may be the subject o
...

SPÉCIFICATION ISO/TS
TECHNIQUE 7821
Première édition
2005-02-15


Tabac et produits du tabac — Préparation
et constitution d'échantillons identiques
à partir d'un même lot pour la conduite
d'essais comparatifs portant sur la
qualité des méthodes d'essai
Tobacco and tobacco products — Preparation and constitution of
identical samples from the same lot for collaborative studies for the
evaluation of test methods




Numéro de référence
ISO/TS 7821:2005(F)
©
ISO 2005

---------------------- Page: 1 ----------------------
ISO/TS 7821:2005(F)
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©  ISO 2005
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ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax. + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Publié en Suisse

ii © ISO 2005 – Tous droits réservés

---------------------- Page: 2 ----------------------
ISO/TS 7821:2005(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux de
normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général confiée
aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire partie du
comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (CEI) en ce qui concerne la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI,
Partie 2.
La tâche principale des comités techniques est d'élaborer les Normes internationales. Les projets de Normes
internationales adoptés par les comités techniques sont soumis aux comités membres pour vote. Leur
publication comme Normes internationales requiert l'approbation de 75 % au moins des comités membres
votants.
Dans d'autres circonstances, en particulier lorsqu'il existe une demande urgente du marché, un comité
technique peut décider de publier d'autres types de documents normatifs:
 une Spécification publiquement disponible ISO (ISO/PAS) représente un accord entre les experts dans
un groupe de travail ISO et est acceptée pour publication si elle est approuvée par plus de 50 % des
membres votants du comité dont relève le groupe de travail;
 une Spécification technique ISO (ISO/TS) représente un accord entre les membres d'un comité technique
et est acceptée pour publication si elle est approuvée par 2/3 des membres votants du comité.
Une ISO/PAS ou ISO/TS fait l'objet d'un examen après trois ans afin de décider si elle est confirmée pour trois
nouvelles années, révisée pour devenir une Norme internationale, ou annulée. Lorsqu'une ISO/PAS ou
ISO/TS a été confirmée, elle fait l'objet d'un nouvel examen après trois ans qui décidera soit de sa
transformation en Norme internationale soit de son annulation.
L'attention est appelée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable de ne
pas avoir identifié de tels droits de propriété et averti de leur existence.
L'ISO/TS 7821 a été élaborée par le comité technique ISO/TC 126, Tabac et produits du tabac, sous-comité
SC 1, Essais physiques et dimensionnels.
Cette édition annule et remplace l'ISO/TR 7821:1982, qui
...