SIST EN ISO 5398-1:2009
Leather - Chemical determination of chromic oxide content - Part 1: Quantification by titration (ISO 5398-1:2007)
Leather - Chemical determination of chromic oxide content - Part 1: Quantification by titration (ISO 5398-1:2007)
This part of ISO 5398 describes a method for the determination of chromium in aqueous solution obtained from leather. This is an analysis for total chromium in leather; it is not compound specific or specific to its oxidation state. This method describes the determination of chrome by iodometric titration and is to be applicable to chromium-tanned leathers which are expected to have chromic oxide contents in excess of 0,3 %. Two different methods are described as alternatives for obtaining chromium in a suitable solution. It is appropriate to use either method.
Leder - Chemische Bestimmung des Chromoxidgehaltes - Teil 1: Bestimmung durch Titration (ISO 5398-1:2007)
Dieser Teil der ISO 5398 beschreibt ein Verfahren zur Bestimmung von Chrom in einer aus Leder erhaltenen wässrigen Lösung. Im vorliegenden Fall handelt es sich um eine Analyse des Gesamtchromgehaltes in Leder, die nicht verbindungsspezifisch oder spezifisch für die Oxidationsstufe ist.
Dieses Verfahren beschreibt die Bestimmung von Chrom durch jodometrische Titration und ist vorgesehen für mit Chrom gegerbte Leder, bei denen Chromoxidgehalte von mehr als 0,3 % vermutet werden. Es werden zwei unterschiedliche Verfahren als Alternative zum Erhalt von Chrom in einer geeigneten Lösung beschrieben. Es ist angebracht, beide Verfahren anzuwenden.
Cuir - Dosage de l'oxyde de chrome - Partie 1: Quantification par titrage (ISO 5398-1:2007)
L'ISO 5398-1:2007 spécifie une méthode permettant de doser le chrome dans une solution aqueuse obtenue à partir de cuir. C'est une analyse du chrome total contenu dans le cuir; elle est non spécifique du composé de chrome ou de son état d'oxydation.
La présente méthode indique comment doser le chrome par titrage iodométrique; elle doit être applicable aux cuirs tannés au chrome, susceptibles de contenir de l'oxyde de chrome dans des proportions supérieures à 0,3 %. Deux méthodes différentes sont décrites pour obtenir du chrome dans une solution appropriée. Ces deux méthodes peuvent être appliquées.
Usnje - Kemijsko določevanje kromovega oksida - 1. del: Kvantitativna titracija (ISO 5398-1:2007)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 5398-1:2009
01-januar-2009
8VQMH.HPLMVNRGRORþHYDQMHNURPRYHJDRNVLGDGHO .YDQWLWDWLYQDWLWUDFLMD
,62
Leather - Chemical determination of chromic oxide content - Part 1: Quantification by
titration (ISO 5398-1:2007)
Leder - Chemische Bestimmung des Chromoxidgehaltes - Teil 1: Bestimmung durch
Titration (ISO 5398-1:2007)
Cuir - Dosage de l'oxyde de chrome - Partie 1: Quantification par titrage (ISO 5398-
1:2007)
Ta slovenski standard je istoveten z: EN ISO 5398-1:2007
ICS:
59.140.30 Usnje in krzno Leather and furs
SIST EN ISO 5398-1:2009 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 5398-1:2009
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SIST EN ISO 5398-1:2009
EUROPEAN STANDARD
EN ISO 5398-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2007
ICS 59.140.30
English Version
Leather - Chemical determination of chromic oxide content - Part
1: Quantification by titration (ISO 5398-1:2007)
Cuir - Dosage chimique de l'oxyde de chrome - Partie 1: Leder - Chemische Bestimmung des Chromoxidgehalts -
Quantification par titrage (ISO 5398-1:2007) Teil 1: Bestimmung durch Titration (ISO 5398-1:2007)
This European Standard was approved by CEN on 28 July 2007.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5398-1:2007: E
worldwide for CEN national Members.
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SIST EN ISO 5398-1:2009
EN ISO 5398-1:2007 (E)
Contents Page
Foreword.3
2
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SIST EN ISO 5398-1:2009
EN ISO 5398-1:2007 (E)
Foreword
This document (EN ISO 5398-1:2007) has been prepared by Technical Committee CEN/TC 289 "Leather", the
secretariat of which is held by UNI, in collaboration with the International Union of Leather Technologists and
Chemists Societies (IULTCS).
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 February 2008, and conflicting national standards shall be withdrawn
at the latest by February 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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
3
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SIST EN ISO 5398-1:2009
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SIST EN ISO 5398-1:2009
INTERNATIONAL ISO
STANDARD 5398-1
IULTCS/IUC
8:1
First edition
2007-08-01
Leather — Chemical determination of
chromic oxide content —
Part 1:
Quantification by titration
Cuir — Dosage chimique de l'oxyde de chrome —
Partie 1: Quantification par titrage
Reference number
ISO 5398-1:2007(E)
IULTCS/IUC 8:1:2007(E)
©
ISO 2007
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SIST EN ISO 5398-1:2009
ISO 5398-1:2007(E)
IULTCS/IUC 8:1:2007(E)
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ii © ISO 2007 – All rights reserved
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SIST EN ISO 5398-1:2009
ISO 5398-1:2007(E)
IULTCS/IUC 8:1:2007(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 Principle.1
5 Sampling and sample preparation.2
6 Reagents.2
6.1 Wet oxidation method .2
6.2 Alkaline fusion method .2
6.3 Iodometric titration .2
7 Apparatus .2
8 Methods .3
8.1 Preparation of analytical solution.3
8.2 Measurement of the aqueous solution.3
9 Calculation and expression of results.4
9.1 General.4
9.2 Repeatability.4
10 Test report .4
Annex A (informative) Determination of water and other volatile matter.5
© ISO 2007 – All rights reserved iii
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SIST EN ISO 5398-1:2009
ISO 5398-1:2007(E)
IULTCS/IUC 8:1:2007(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.
This part of ISO 5398 was prepared by the Chemical Tests Commission of the International Union of Leather
Technologists and Chemists Societies (IUC Commission, IULTCS) in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, the secretariat of which is
held by UNI, in accordance with the agreement on technical co-operation between ISO and CEN (Vienna
Agreement). It is based on I
...
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