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EN ISO 17226-2:2019

(Main)

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

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
ICS
59.140.30 - Leather and furs
Technical Committee
CEN/TC 289 - Leather
Drafting Committee
CEN/TC 289/WG 1 - Chemical test methods
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
06-Feb-2019
Completion Date
06-Feb-2019
Ref Project
SIST EN ISO 17226-2:2019 - Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO 17226-2:2018)

Relations

Replaces
EN ISO 17226-2:2008/AC:2009 - Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO 17226-2:2008/Cor 1:2009)
Effective Date
13-Feb-2019
Replaces
EN ISO 17226-2:2008 - Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO 17226-2:2008)
Effective Date
10-May-2017

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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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...

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