Leather - Chemical determination of chromium(VI) content in leather - Thermal pre-ageing of leather and determination of hexavalent chromium (ISO 10195:2018)

This document specifies a thermal pre-ageing procedure for leather to obtain indications about the tendency to the formation of hexavalent chromium under specified conditions and the determination of hexavalent chromium according to ISO 17075-1 or ISO 17075-2.
This thermal pre-ageing procedure does not simulate any real condition in leather production or use.
It is applicable to all types of chromium tanned leather.

Leder - Chemische Bestimmung des Chrom(VI)-Gehalts in Leder - Thermische Voralterung von Leder und Bestimmung von sechswertigem Chrom (ISO 10195:2018)

Dieses Dokument legt ein Verfahren zur thermischen Voralterung von Leder fest, um Hinweise auf die Neigung zur Bildung von sechswertigem Chrom unter festgelegten Bedingungen und die Bestimmung von sechswertigem Chrom nach ISO 17075-1 oder ISO 17075-2 zu erhalten.
Dieses Verfahren zur thermischen Voralterung simuliert keine realen Bedingungen in der Lederproduktion oder im Gebrauch.
Es ist auf alle Arten von chromgegerbtem Leder anwendbar.

Cuir - Détermination chimique de la teneur en chrome(VI) du cuir - Vieillissement thermique du cuir et détermination de la teneur en chrome hexavalent (ISO 10195:2018)

Usnje - Kemično določevanje kroma (VI) v usnju - Termično staranje usnja in določevanje šestvalentnega kroma (ISO 10195:2018)

General Information

Status
Published
Public Enquiry End Date
02-May-2021
Publication Date
29-Aug-2021
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
25-Aug-2021
Due Date
30-Oct-2021
Completion Date
30-Aug-2021

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SLOVENSKI STANDARD
SIST EN ISO 10195:2021
01-oktober-2021
Usnje - Kemično določevanje kroma (VI) v usnju - Termično staranje usnja in
določevanje šestvalentnega kroma (ISO 10195:2018)

Leather - Chemical determination of chromium(VI) content in leather - Thermal pre-

ageing of leather and determination of hexavalent chromium (ISO 10195:2018)
Leder - Chemische Bestimmung des Chrom(VI)-Gehalts in Leder - Thermische
Voralterung von Leder und Bestimmung von sechswertigem Chrom (ISO 10195:2018)

Cuir - Détermination chimique de la teneur en chrome(VI) du cuir - Vieillissement

thermique du cuir et détermination de la teneur en chrome hexavalent (ISO 10195:2018)

Ta slovenski standard je istoveten z: EN ISO 10195:2021
ICS:
59.140.30 Usnje in krzno Leather and furs
71.060.10 Kemični elementi Chemical elements
SIST EN ISO 10195:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 10195:2021
---------------------- Page: 2 ----------------------
SIST EN ISO 10195:2021
EN ISO 10195
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2021
EUROPÄISCHE NORM
ICS 59.140.30
English Version
Leather - Chemical determination of chromium(VI)
content in leather - Thermal pre-ageing of leather and
determination of hexavalent chromium (ISO 10195:2018)

Cuir - Détermination chimique de la teneur en Leder - Chemische Bestimmung des Chrom(VI)-Gehalts

chrome(VI) du cuir - Vieillissement thermique du cuir in Leder - Thermische Voralterung von Leder und

et détermination de la teneur en chrome hexavalent Bestimmung von sechswertigem Chrom (ISO

(ISO 10195:2018) 10195:2018)
This European Standard was approved by CEN on 9 August 2021.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, 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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10195:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 10195:2021
EN ISO 10195:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 10195:2021
EN ISO 10195:2021 (E)
European foreword

The text of ISO 10195:2018 has been prepared by Technical Committee ISO/IULTCS "International

Union of Leather Technologists and Chemists Societies” of the International Organization for

Standardization (ISO) and has been taken over as EN ISO 10195:2021 by 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 February 2022, and conflicting national standards

shall be withdrawn at the latest by February 2022.

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.

Any feedback and questions on this document should be directed to the users’ national standards body.

A complete listing of these bodies can be found on the CEN website.

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, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 10195:2018 has been approved by CEN as EN ISO 10195:2021 without any modification.

---------------------- Page: 5 ----------------------
SIST EN ISO 10195:2021
---------------------- Page: 6 ----------------------
SIST EN ISO 10195:2021
INTERNATIONAL ISO
STANDARD 10195
IULTCS/IUC 41
First edition
2018-05
Leather — Chemical determination
of chromium(VI) content in leather
— Thermal pre-ageing of leather
and determination of hexavalent
chromium
Cuir — Détermination chimique de la teneur en chrome(VI) du cuir
— Vieillissement thermique du cuir et détermination de la teneur en
chrome hexavalent
Reference numbers
ISO 10195:2018(E)
IULTCS/IUC 41:2018(E)
ISO 2018
---------------------- Page: 7 ----------------------
SIST EN ISO 10195:2021
ISO 10195:2018(E)
IULTCS/IUC 41:2018(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: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 10195:2021
ISO 10195:2018(E)
IULTCS/IUC 41:2018(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Apparatus ................................................................................................................................................................................................................... 1

6 Procedure..................................................................................................................................................................................................................... 2

7 Test report ................................................................................................................................................................................................................... 3

Annex A (informative) Accuracy ................................................................................................................................................................................ 4

Annex B (informative) Natural ageing and development of hexavalent chromium ............................................5

© ISO 2018 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 10195:2021
ISO 10195:2018(E)
IULTCS/IUC 41:2018(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

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

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the

...

SLOVENSKI STANDARD
oSIST prEN ISO 10195:2021
01-april-2021
Usnje - Kemično določevanje kroma (VI) v usnju - Termično staranje usnja in
določevanje šestvalentnega kroma (ISO 10195: 2018)

Leather - Chemical determination of chromium(VI) content in leather - Thermal pre-

ageing of leather and determination of hexavalent chromium (ISO 10195:2018)

Cuir - Détermination chimique de la teneur en chrome(VI) du cuir - Vieillissement

thermique du cuir et détermination de la teneur en chrome hexavalent (ISO 10195:2018)

Ta slovenski standard je istoveten z: prEN ISO 10195
ICS:
59.140.30 Usnje in krzno Leather and furs
71.060.10 Kemični elementi Chemical elements
oSIST prEN ISO 10195:2021 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 10195:2021
---------------------- Page: 2 ----------------------
oSIST prEN ISO 10195:2021
INTERNATIONAL ISO
STANDARD 10195
IULTCS/IUC 41
First edition
2018-05
Leather — Chemical determination
of chromium(VI) content in leather
— Thermal pre-ageing of leather
and determination of hexavalent
chromium
Cuir — Détermination chimique de la teneur en chrome(VI) du cuir
— Vieillissement thermique du cuir et détermination de la teneur en
chrome hexavalent
Reference numbers
ISO 10195:2018(E)
IULTCS/IUC 41:2018(E)
ISO 2018
---------------------- Page: 3 ----------------------
oSIST prEN ISO 10195:2021
ISO 10195:2018(E)
IULTCS/IUC 41:2018(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: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 10195:2021
ISO 10195:2018(E)
IULTCS/IUC 41:2018(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Apparatus ................................................................................................................................................................................................................... 1

6 Procedure..................................................................................................................................................................................................................... 2

7 Test report ................................................................................................................................................................................................................... 3

Annex A (informative) Accuracy ................................................................................................................................................................................ 4

Annex B (informative) Natural ageing and development of hexavalent chromium ............................................5

© ISO 2018 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 10195:2021
ISO 10195:2018(E)
IULTCS/IUC 41:2018(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

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

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: www .iso .org/iso/foreword .html.

This document was prepared by the Chemical Test 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, and the European Committee for Standardization (CEN) Technical Committee

CEN/TC 309, Footwear, the secretariat of which is held by AENOR, 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 the sampling and testing of leather. ISO

recognizes IULTCS as an international standardizing body for the preparation of test methods for

leather.
iv © ISO 2018 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 10195:2021
ISO 10195:2018(E)
IULTCS/IUC 41:2018(E)
Introduction

More than 80 % of leather is tanned using chromium(III) salts. The industry recommends

manufacturing procedures to avoid oxidative conditions that could allow the formation of traces of

hexavalent chromium [chromium(VI)] in the leather.

It is difficult to reproduce the natural ageing process. Therefore, in order to predict the tendency for

trace levels of hexavalent chromium to develop in chromium(III) tanned leather, a number of pre-ageing

tests have been proposed, some of which are being used in commercial leather specifications.

Following an inter-laboratory trial (see Annex A), thermal pre-ageing was selected as a suitable pre-

ageing test procedure. The method is presented in this document.

Information on the development of hexavalent chromium during the natural ageing of chromium(III)

tanned leather is given in Annex B.
© ISO 2018 – All rights reserved v
---------------------- Page: 7 ----------------------
oSIST prEN ISO 10195:2021
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oSIST prEN ISO 1
...

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