Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO 17226-2:2018)

This document specifies a method for the determination of free and released formaldehyde in leathers. This method, based on colorimetric analysis, is not intended to be used for a precise quantification of formaldehyde.
The formaldehyde content is taken to be the quantity of free-formaldehyde and formaldehyde extracted through hydrolysis contained in a water extract from the leather under standard conditions.
This process is not absolutely selective for formaldehyde. Other compounds such as extracted dyes could interfere at 412 nm.

Leder - Chemische Bestimmung des Formaldehydgehalts - Teil 2: Verfahren mittels kolorimetrischer Analyse (ISO 17226-2:2018)

Cuir - Dosage chimique du formaldéhyde - Partie 2: Méthode par analyse colorimétrique (ISO 17226-2:2018)

Le présent document spécifie une méthode permettant de doser le formaldéhyde libre et le formaldéhyde dégagé dans les cuirs. Cette méthode, fondée sur l'analyse colorimétrique, n'est pas destinée à obtenir une quantification précise du formaldéhyde.
La teneur en formaldéhyde est définie comme étant la quantité de formaldéhyde libre et de formaldéhyde extrait par hydrolyse contenue dans un extrait d'eau provenant du cuir dans des conditions normalisées.
Ce processus n'est pas absolument sélectif pour le formaldéhyde. D'autres composants, tels que des extraits de teintures, pourraient interférer à 412 nm.

Usnje - Kemijsko določevanje formaldehida - 2. del: Analiza s kolorimetrijsko metodo (ISO 17226-2:2018)

Ta dokument določa metodo za ugotavljanje prostega in sproščenega formaldehida v usnju.
Ta metoda, ki temelji na kolorimetrijski analizi, ni namenjena temu, da bi se uporabljala za natančno kvantifikacijo formaldehida.
Za vsebnost formaldehida se šteje količina prostega formaldehida in formaldehida, izvlečenega s hidrolizo v vodnem izvlečku iz usnja pod standardnimi pogoji. Ta postopek ni absolutno selektiven za formaldehid. Druge spojine, na primer izvlečene barve, lahko povzročajo interferenco pri 412 nm.

General Information

Status
Published
Publication Date
05-Feb-2019
Withdrawal Date
30-Aug-2019
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
06-Feb-2019
Completion Date
06-Feb-2019

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 17226-2:2019
01-april-2019
1DGRPHãþD
SIST EN ISO 17226-2:2009
SIST EN ISO 17226-2:2009/AC:2009
8VQMH.HPLMVNRGRORþHYDQMHIRUPDOGHKLGDGHO$QDOL]DVNRORULPHWULMVNR
PHWRGR ,62
Leather - Chemical determination of formaldehyde content - Part 2: Method using
colorimetric analysis (ISO 17226-2:2018)
Leder - Chemische Bestimmung des Formaldehydgehalts - Teil 2: Verfahren mittels
kolorimetrischer Analyse (ISO 17226-2:2018)
Cuir - Dosage chimique du formaldéhyde - Partie 2: Méthode par analyse colorimétrique
(ISO 17226-2:2018)
Ta slovenski standard je istoveten z: EN ISO 17226-2:2019
ICS:
59.140.30 Usnje in krzno Leather and furs
SIST EN ISO 17226-2:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 17226-2:2019

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SIST EN ISO 17226-2:2019


EN ISO 17226-2
EUROPEAN STANDARD

NORME EUROPÉENNE

February 2019
EUROPÄISCHE NORM
ICS 59.140.30 Supersedes EN ISO 17226-2:2008
English Version

Leather - Chemical determination of formaldehyde content
- Part 2: Method using colorimetric analysis (ISO 17226-
2:2018)
Cuir - Dosage chimique du formaldéhyde - Partie 2: Leder - Chemische Bestimmung des
Méthode par analyse colorimétrique (ISO 17226- Formaldehydgehalts - Teil 2: Verfahren mittels
2:2018) kolorimetrischer Analyse (ISO 17226-2:2018)
This European Standard was approved by CEN on 16 December 2018.

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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17226-2:2019 E
worldwide for CEN national Members.

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SIST EN ISO 17226-2:2019
EN ISO 17226-2:2019 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 17226-2:2019
EN ISO 17226-2:2019 (E)
European foreword
This document (EN ISO 17226-2:2019) has been prepared by Technical Committee ISO/IULTCS
"International Union of Leather Technologists and Chemists Societies" in collaboration with Technical
Committee CEN/TC 289 “Leather” the secretariat of which is held by UNI.
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 August 2019, and conflicting national standards shall
be withdrawn at the latest by August 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 17226-2:2008.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 17226-2:2018 has been approved by CEN as EN ISO 17226-2:2019 without any
modification.


3

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SIST EN ISO 17226-2:2019

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...

SLOVENSKI STANDARD
oSIST prEN ISO 17226-2:2018
01-januar-2018
8VQMH.HPLMVNRGRORþHYDQMHIRUPDOGHKLGDGHO$QDOL]DVNRORULPHWULMVNR
PHWRGR ,62',6
Leather - Chemical determination of formaldehyde content - Part 2: Method using
colorimetric analysis (ISO/DIS 17226-2:2017)
Leder - Chemische Bestimung des Formaldehyd-Anteils - Teil 2: Verfahren mittels
kolorimetrischer Analyse (ISO/DIS 17226-2:2017)
Cuir - Dosage chimique du formaldéhyde - Partie 2: Méthode par analyse colorimétrique
(ISO/DIS 17226-2:2017)
Ta slovenski standard je istoveten z: prEN ISO 17226-2
ICS:
59.140.30 Usnje in krzno Leather and furs
oSIST prEN ISO 17226-2:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 17226-2:2018

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oSIST prEN ISO 17226-2:2018
DRAFT INTERNATIONAL STANDARD
ISO/DIS 17226-2
IULTCS/IUC 19-2
IULTCS Secretariat: ISO secretariat
Voting begins on: Voting terminates on:
2017-10-30 2018-01-22
Leather — Chemical determination of formaldehyde
content —
Part 2:
Method using colorimetric analysis
Cuir — Dosage chimique du formaldéhyde —
Partie 2: Méthode par analyse colorimétrique
ICS: 59.140.30
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
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 numbers
NATIONAL REGULATIONS.
ISO/DIS 17226-2:2017(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
IULTCS/IUC 19-2:2017(E)
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2017

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oSIST prEN ISO 17226-2:2018
ISO/DIS 17226-2:2017(E)
IULTCS/IUC 19-2:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, 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.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

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oSIST prEN ISO 17226-2:2018
ISO 17226-2:2017(E)
IULTCS/IUC 19-2:2017(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.
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 17226-2 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 289, Leather, in collaboration with the Chemical Test Commission of the International Union of
Leather Technologists and Chemists Societies (IUC Commission, IULTCS), in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
IULTCS, originally formed in 1897, is a world-wide organization of professional leather societies to further the
advancement of leather science and technology. IULTCS has three commissions, which are responsible for
establishing international methods for sampling and the testing of le
...

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