SIST EN ISO 17070:2015

Leather - Chemical tests - Determination of tetrachlorophenol-, trichlorophenol-, dichlorophenol-, monochlorophenol-isomers and pentchlorophenol content (ISO 17070:2015)

ISO 17070:2015 specifies a method for determining the content of tetrachlorophenol-, trichlorophenol-, dichlorophenol-, monochlorophenol-isomers, and pentachlorophenol, its salts, and esters in leather.

Leder - Chemische Prüfungen - Bestimmung des Gehalts an Tetrachlorphenol-, Trichlorphenol-, Dichlorphenol-, Monochlorphenol-Isomeren und Pentachlorphenol (ISO 17070:2015)

Diese Internationale Norm legt ein Verfahren zur Bestimmung des Gehalts an Tetrachlorphenol- (TeCP), Trichlorphenol- (TrCP), Dichlorphenol- (DiCP), Monochlorphenol- (MoCP) Isomeren und Pentachlorphenol (PCP), dessen Salzen und Estern in Leder fest.

Cuir - Essais chimiques - Détermination de la teneur en isomères de monochlorophénol, dichlorophénol, trichlorophénol, tétrachlorophénol et pentachlorophénol (ISO 17070:2015)

L'ISO 17070:2015 spécifie une méthode de détermination de la teneur en isomères du monochlorophénol, dichlorophénol, trichlorophénol et tétrachlorophénol, en pentachlorophénol et ses sels, et en esters, dans le cuir.

Usnje - Kemijski preskusi - Določevanje tetraklorofenol-, diklorofenol-, monoklorofenol izomerov in pentaklorofenola v usnju (ISO 17070:2015)

Ta mednarodni standard določa metodo za določevanje vsebnosti tetraklorofenol, triklorofenol, diklorofenol in monoklorofenol izomerov ter pentaklorofenola, njegovih soli in estrov v usnju.
OPOMBA: S to metodo se lahko določijo tudi bromofenol izomeri.

General Information

• Status: Published
• Publication Date: 30-Mar-2015
• ICS: 59.140.30 - Leather and furs
• Technical Committee: IUSN - Leather
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 11-Mar-2015
• Due Date: 16-May-2015
• Completion Date: 31-Mar-2015
• Ref Project: EN ISO 17070:2015 - Leather - Chemical tests - Determination of tetrachlorophenol-, trichlorophenol-, dichlorophenol-, monochlorophenol-isomers and pentachlorophenol content (ISO 17070:2015)

Relations

• Replaces: SIST EN ISO 17070:2007 - Leather - Chemical tests - Determination of pentachlorophenol content (ISO 17070:2006)
• Effective Date: 01-May-2015

Overview

EN ISO 17070:2015 - titled Leather - Chemical tests - Determination of tetrachlorophenol-, trichlorophenol-, dichlorophenol-, monochlorophenol‑isomers and pentachlorophenol content (ISO 17070:2015) - specifies an analytical method for quantifying chlorinated phenols (including PCP and various chloro‑isomers), their salts and esters in leather. Prepared by IULTCS in cooperation with CEN, this standard replaces the 2006 edition and is intended for laboratories performing chemical testing of leather.

Key topics and technical requirements

• Analytes covered: tetrachlorophenols (TeCP), trichlorophenols (TriCP), dichlorophenols (DiCP), monochlorophenols (MoCP) isomers and pentachlorophenol (PCP). (Bromophenols can also be measured by the same method.)
• Principle: steam‑distillation of a prepared leather sample, extraction into n‑hexane, acetylation of chlorinated phenols, and analysis of the resulting chlorinated phenyl acetates by gas chromatography.
• Detection: gas chromatography (GC) using an electron capture detector (ECD) or a mass selective detector (MSD) for separation and quantification.
• Quantification strategy: external calibration corrected by an internal standard - tetrachloroguaiacol (TCG) is specified as the internal standard.
• Sample preparation: sampling and preparation are aligned with ISO 2418 and ISO 4044; typical test is performed on about 1.0 g of leather (as described in the standard).
• Apparatus and reagents: specified equipment includes steam‑distillation apparatus, GC (ECD or MSD), analytical balance and separation vessels; reagents include a defined chlorinated phenol mix, TCG internal standard, n‑hexane, acetic anhydride (for acetylation), potassium carbonate, sulfuric acid and others.
• Results and reporting: the standard gives procedures for expression of results and test reporting, plus informative annexes on chromatographic conditions and method reliability.

Applications and who uses it

• Leather manufacturers and tanneries: quality control to ensure finished products meet chemical safety and regulatory limits for chlorinated phenols.
• Analytical and QA laboratories: routine testing and verification of leather chemical content using GC/ECD or GC/MS methods.
• Regulatory bodies and environmental compliance teams: monitoring PCP and related chlorophenol residues for consumer safety and environmental requirements.
• Product compliance and certification services: assessment for restricted substances lists, ecolabels, and supply‑chain chemical audits.

Related standards

• ISO 2418 - Sampling location for leather and furs
• ISO 4044 - Preparation of chemical test samples (leather)
• ISO 3696 - Water for analytical laboratory use
• ISO 4684 - Determination of volatile matter (leather)

This standard is essential for accurate determination of chlorinated phenols in leather, combining steam‑distillation, chemical derivatization (acetylation) and GC analysis to provide reliable, comparable test results across laboratories. Keywords: EN ISO 17070:2015, leather chemical tests, chlorinated phenols, pentachlorophenol, gas chromatography, steam distillation, TCG internal standard.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2015
1DGRPHãþD
SIST EN ISO 17070:2007
8VQMH.HPLMVNLSUHVNXVL'RORþHYDQMHWHWUDNORURIHQROGLNORURIHQRO
PRQRNORURIHQROL]RPHURYLQSHQWDNORURIHQRODYXVQMX,62
Leather - Chemical tests - Determination of tetrachlorophenol-, trichlorophenol-,
dichlorophenol-, monochlorophenol-isomers and pentchlorophenol content (ISO
17070:2015)
Leder - Chemische Prüfungen - Bestimmung des Gehalts an Tetrachlorphenol-,
Trichlorphenol-, Dichlorphenol-, Monochlorphenol-Isomeren und Pentachlorphenol (ISO
17070:2015)
Cuir - Essais chimiques - Détermination de la teneur en isomères de monochlorophénol,
dichlorophénol, trichlorophénol, tétrachlorophénol et pentachlorophénol (ISO
17070:2015)
Ta slovenski standard je istoveten z: EN ISO 17070:2015
ICS:
59.140.30 Usnje in krzno Leather and furs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 17070
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2015
ICS 59.140.30 Supersedes EN ISO 17070:2006
English Version
Leather - Chemical tests - Determination of tetrachlorophenol-,
trichlorophenol-, dichlorophenol-, monochlorophenol-isomers
and pentachlorophenol content (ISO 17070:2015)
Cuir - Essais chimiques - Détermination de la teneur en Leder - Chemische Prüfungen - Bestimmung des Gehalts
isomères de monochlorophénol, dichlorophénol, an Tetrachlorphenol-, Thrichlorphenol-, Dichlorphenol-,
trichlorophénol, tétrachlorophénol et en pentachlorophénol Monochlorphenol-Isomeren und Pentachlorphenol (ISO
(ISO 17070:2015) 17070:2015)
This European Standard was approved by CEN on 3 January 2015.

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, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17070:2015 E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 17070:2015) has been prepared by Technical Committee ISO/TC 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 2015, and conflicting national standards shall be withdrawn at
the latest by August 2015.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 17070:2006.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 17070:2015 has been approved by CEN as EN ISO 17070:2015 without any modification.
INTERNATIONAL ISO
STANDARD 17070
IULTCS/IUC 25
Second edition
2015-02-15
Leather — Chemical tests —
Determination of tetrachlorophenol-,
trichlorophenol-, dichlorophenol-,
monochlorophenol-isomers and
pentachlorophenol content
Cuir — Essais chimiques — Détermination de la teneur en
isomères de monochlorophénol, dichlorophénol, trichlorophénol,
tétrachlorophénol et en pentachlorophénol
Reference numbers
ISO 17070:2015(E)
IULTCS/IUC 25:2015(E)
©
ISO 2015
ISO 17070:2015(E)
IULTCS/IUC 25:2015(E)
© ISO 2015
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
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Tel. + 41 22 749 01 11
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Web www.iso.org
Published in Switzerland
ii © ISO 2015 – All rights reserved

ISO 17070:2015(E)
IULTCS/IUC 25:2015(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Abbreviations. 1
4 Principle . 1
5 Apparatus . 2
6 Reagents . 2
6.1 Chlorinated phenol mix . 2
7 Sampling and preparation of samples . 3
8 Procedure. 3
8.1 Steam-distillation. 3
8.2 Liquid-liquid-extraction and acetylation. 4
8.3 Preparation of calibration mixture for acetylated CP and TCG . 4
8.4 Gas chromatography (GC) . 5
9 Expression of results . 5
10 Test report . 5
Annex A (informative) Chromatographic analyses . 7
Annex B (informative) Reliability of the method . 9
ISO 17070:2015(E)
IULTCS/IUC 25:2015(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 meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
ISO 17070 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, 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.
This second edition of ISO 17070 cancels and replaces the first edition (ISO 17070:2006), which has been
technically revised. ISO 17070:2006 previously replaced CEN/TS 14494.
The following changes have been made:
— the additional chlorinated phenol substances tetrachlorophenol-, trichlorophenol-, dichlorophenol-,
and monochlorophenol-isomers are included;
— a new Clause 3 has been inserted to list the chlorophenol abbreviations;
— the examples of chromatographic conditions, previously in 7.4, have been moved to a new Annex A
(the previous Annex A becomes Annex B).
Annexes A and B are informative.
iv © ISO 2015 – All rights reserved

ISO 17070:2015(E
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