SIST EN ISO 4098:2018

Leather - Chemical tests - Determination of water-soluble matter, water-soluble inorganic matter and water-soluble organic matter (ISO 4098:2018)

This document specifies a method of determination of water-soluble matter, water-soluble inorganic
matter and water-soluble organic matter.
It is applicable to all leather types. The result obtained by this analysis depends on factors such as:
— the degree to which the leather is ground;
— the extraction temperature;
— the extraction period;
— the ratio of leather to water.
To obtain comparable results, it is consequently imperative that test conditions be accurately
reproduced.
In all cases, any ammonium salts in the filtrate are included as part of the water-soluble matter and
are then decomposed on ignition. Thus they contribute towards the result for water-soluble organic
substances. The concentration of the ammonium salts can be determined in the filtrate separately if
required.

Leder - Chemische Prüfungen - Bestimmung wasserlöslicher Substanzen, wasserlöslicher anorganischer Substanzen und wasserlöslicher organischer Substanzen (ISO 4098:2018)

Diese Internationale Norm legt ein Verfahren zur Bestimmung wasserlöslicher Substanzen, wasserlöslicher anorganischer Substanzen und wasserlöslicher organischer Substanzen fest.
Dieses Verfahren gilt für alle Lederarten. Das durch diese Untersuchung erhaltene Ergebnis hängt von Faktoren ab, wie zum Beispiel:
   dem Grad, bis zu dem das Leder zerkleinert wird;
   der Extraktionstemperatur;
   der Extraktionsdauer;
   dem Leder-Wasser-Verhältnis.
Zum Erhalt vergleichbarer Ergebnisse ist es folglich zwingend erforderlich, dass die Bedingungen stets genau gleich sind.
In jedem Fall werden in dem Filtrat vorhandene Ammoniumsalze als Teil der wasserlöslichen Substanz einbezogen und anschließend beim Glühen zersetzt. Auf diese Weise tragen sie zum Ergebnis der wasserlöslichen organischen Substanzen bei. Die Konzentration an Ammoniumsalzen kann, sofern gefordert, in dem Filtrat getrennt bestimmt werden.

Cuir - Essais chimiques - Dosage des matières solubles dans l'eau, des matières inorganiques solubles dans l'eau et des matières organiques solubles dans l'eau (ISO 4098:2018)

ISO 4098 | IULTCS/IUC 6:2018 spécifie une méthode de dosage des matières solubles dans l'eau, des matières inorganiques solubles dans l'eau et des matières organiques solubles dans l'eau.
Cette méthode est applicable à tous les types de cuir. Le résultat obtenu lors de ce dosage dépend de facteurs tels que:
-      le degré de broyage du cuir;
-      la température d'extraction;
-      la durée de l'extraction;
-      la teneur en humidité du cuir.
Par conséquent, pour obtenir des résultats comparables, il est impératif d'utiliser des conditions d'essai exactement identiques.
Dans tous les cas, les sels d'ammonium éventuellement présents dans le filtrat sont pris en compte lors du dosage des matières solubles dans l'eau, ils sont ensuite décomposés lors de la combustion. Ils contribuent ainsi au résultat obtenu pour la teneur en matières organiques solubles dans l'eau. La concentration des sels d'ammonium dans le filtrat peut être déterminée séparément si nécessaire.

Usnje - Kemijski preskusi - Določevanje v vodi topnih snovi, v vodi topnih anorganskih snovi in v vodi topnih organskih snovi (ISO 4098:2018)

Ta dokument podaja metodo za določevanje v vodi topnih snovi, v vodi topnih anorganskih snovi in v vodi topnih organskih snovi.
Uporablja se za vse vrste usnja. Rezultat, pridobljen na podlagi te analize, je odvisen od naslednjih dejavnikov:
– stopnja, do katere je usnje zmleto;
– temperatura izločanja;
– čas izločanja;
– razmerje med usnjem in vodo.
Za pridobitev primerljivih rezultatov je zato zelo pomembno, da so preskusni pogoji natančno ponovljeni.
V vsakem primeru so amonijeve soli v filtratu vključene kot del v vodi topnih snovi, ki se nato razgradijo ob vžigu. Tako prispevajo k rezultatu v vodi topnih organskih snovi. Po potrebi je koncentracijo amonijevih soli mogoče določiti ločeno od filtrata.

General Information

• Status: Published
• Public Enquiry End Date: 02-Mar-2017
• Publication Date: 11-Sep-2018
• ICS: 59.140.30 - Leather and furs
• Technical Committee: IUSN - Leather
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 29-Aug-2018
• Due Date: 03-Nov-2018
• Completion Date: 12-Sep-2018
• Ref Project: EN ISO 4098:2018 - Leather - Chemical tests - Determination of water-soluble matter, water-soluble inorganic matter and water-soluble organic matter (ISO 4098:2018)

Relations

• Replaces: SIST EN ISO 4098:2006 - Leather - Chemical tests - Determination of water-soluble matter, water-soluble inorganic matter and water-soluble organic matter (ISO 4098:2006)
• Effective Date: 01-Oct-2018

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 4098:2018
01-oktober-2018
1DGRPHãþD
SIST EN ISO 4098:2006
8VQMH.HPLMVNLSUHVNXVL'RORþHYDQMHYYRGLWRSQLKVQRYLYYRGLWRSQLK
DQRUJDQVNLKVQRYLLQYYRGLWRSQLKRUJDQVNLKVQRYL,62
Leather - Chemical tests - Determination of water-soluble matter, water-soluble inorganic
matter and water-soluble organic matter (ISO 4098:2018)
Leder - Chemische Prüfungen - Bestimmung wasserlöslicher Substanzen,
wasserlöslicher anorganischer Substanzen und wasserlöslicher organischer Substanzen
(ISO 4098:2018)
Cuir - Essais chimiques - Dosage des matières solubles dans l'eau, des matières
inorganiques solubles dans l'eau et des matières organiques solubles dans l'eau (ISO
4098:2018)
Ta slovenski standard je istoveten z: EN ISO 4098:2018
ICS:
59.140.30 Usnje in krzno Leather and furs
SIST EN ISO 4098:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 4098:2018

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SIST EN ISO 4098:2018


EN ISO 4098
EUROPEAN STANDARD

NORME EUROPÉENNE

July 2018
EUROPÄISCHE NORM
ICS 59.140.30 Supersedes EN ISO 4098:2006
English Version

Leather - Chemical tests - Determination of water-soluble
matter, water-soluble inorganic matter and water-soluble
organic matter (ISO 4098:2018)
Cuir - Essais chimiques - Dosage des matières solubles Leder - Chemische Prüfungen - Bestimmung
dans l'eau, des matières inorganiques solubles dans wasserlöslicher Substanzen, wasserlöslicher
l'eau et des matières organiques solubles dans l'eau anorganischer Substanzen und wasserlöslicher
(ISO 4098:2018) organischer Substanzen (ISO 4098:2018)
This European Standard was approved by CEN on 23 March 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4098:2018 E
worldwide for CEN national Members.

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SIST EN ISO 4098:2018
EN ISO 4098:2018 (E)
Contents Page
European foreword . 3

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SIST EN ISO 4098:2018
EN ISO 4098:2018 (E)
European foreword
This document (EN ISO 4098:2018) has been prepared by Technical Committee 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 January 2019, and conflicting national standards shall
be withdrawn at the latest by January 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 4098:2006.
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 4098:2018 has been approved by CEN as EN ISO 4098:2018 without any modification.

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SIST EN ISO 4098:2018

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SIST EN ISO 4098:2018
INTERNATIONAL ISO
STANDARD 4098
IULTCS - IUC 6
Second edition
2018-02
Leather — Chemical tests —
Determination of water-soluble
matter, water-soluble inorganic matter
and water-soluble organic matter
Cuir — Essais chimiques — Dosage des matières solubles dans
l'eau, des matières inorganiques solubles dans l'eau et des matières
organiques solubles dans l'eau
Reference numbers
ISO 4098:2018(E)
IULTCS - IUC 6:2018(E)
©
ISO 2018

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SIST EN ISO 4098:2018
ISO 4098:2018(E)
IULTCS - IUC 6:2018(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

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SIST EN ISO 4098:2018
ISO 4098:2018(E)
IULTCS - IUC 6:2018(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Reagents . 2
6 Apparatus . 2
7 Sampling and preparation of samples . 3
8 Procedure. 3
8.1 General . 3
8.2 Water-soluble matter . 3
8.3 Water-soluble inorganic matter . 3
9 Remarks on the procedure . 3
10 Calculation and expression of results . 4
11 Test report . 4
12 Repeatability . 5
© ISO 2018 – All rights reserved iii

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SIST EN ISO 4098:2018
ISO 4098:2018(E)
IULTCS - IUC 6:2018(E)
Foreword
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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
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