EN ISO 15680:2003

SLOVENSKI STANDARD
01-februar-2004
.DNRYRVWYRGH±'RORþHYDQMHPRQRFLNOLþQLKRJOMLNRYRGLNRYQDIWDOHQDLQ
SRVDPH]QLKNORULUDQLKVSRMLQVSOLQVNRNURPDWRJUDILMR]XSRUDERWHKQLNHSXUJH
DQGWUDSLQWRSORWQRGHVRUSFLMR,62
Water quality - Gas-chromatographic determination of a number of monocyclic aromatic
hydrocarbons, naphthalene and several chlorinated compounds using purge-and-trap
and thermal desorption (ISO 15680:2003)
Wasserbeschaffenheit - Gaschromatische Bestimmung einer Anzahl monocyclischer
aromatischer Kohlenwasserstoffe, Naphthalin und einiger chlorierter Substanzen mittels
Purge und Trap und thermischer Desorption (ISO 15680:2003)
Qualité de l'eau - Dosage par chromatographie en phase gazeuse d'un certain nombre
d'hydrocarbures aromatiques monocycliques, du naphtalene et de divers composés
chlorés par dégazage, piégeage et désorption thermique (ISO 15680:2003)
Ta slovenski standard je istoveten z: EN ISO 15680:2003
ICS:
13.060.50 3UHLVNDYDYRGHQDNHPLþQH Examination of water for
VQRYL chemical substances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 15680
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2003
ICS 13.060.50
English version
Water quality - Gas-chromatographic determination of a number
of monocyclic aromatic hydrocarbons, naphthalene and several
chlorinated compounds using purge-and-trap and thermal
desorption (ISO 15680:2003)
Qualité de l'eau - Dosage par chromatographie en phase Wasserbeschaffenheit - Gaschromatische Bestimmung
gazeuse d'un certain nombre d'hydrocarbures aromatiques einer Anzahl monocyclischer aromatischer
monocycliques, du naphtalène et de divers composés Kohlenwasserstoffe, Naphthalin und einiger chlorierter
chlorés par dégazage, piégeage et désorption thermique Substanzen mittels Purge und Trap und thermischer
(ISO 15680:2003) Desorption (ISO 15680:2003)
This European Standard was approved by CEN on 28 October 2003.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, 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
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15680:2003 E
worldwide for CEN national Members.

CORRECTED 2003-12-17
Foreword
This document (EN ISO 15680:2003) has been prepared by Technical Committee ISO/TC 147
"Water quality" in collaboration with Technical Committee CEN/TC 230 "Water analysis", the
secretariat of which is held by DIN.
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 May 2004, and conflicting national standards
shall be withdrawn at the latest by May 2004.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and
the United Kingdom.
Endorsement notice
The text of ISO 15680:2003 has been approved by CEN as EN ISO 15680:2003 without any
modifications.
NOTE Normative references to International Standards are listed in Annex ZA (normative).
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of
any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications, indicated
by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 3696 1987 Water for analytical laboratory EN ISO 3696 1995
use - Specification and test
methods
INTERNATIONAL ISO
STANDARD 15680
First edition
2003-11-01
Water quality — Gas-chromatographic
determination of a number of monocyclic
aromatic hydrocarbons, naphthalene and
several chlorinated compounds using
purge-and-trap and thermal desorption
Qualité de l'eau — Dosage par chromatographie en phase gazeuse
d'un certain nombre d'hydrocarbures aromatiques monocycliques, du
naphtalène et de divers composés chlorés par dégazage, piégeage et
désorption thermique
Reference number
ISO 15680:2003(E)
©
ISO 2003
ISO 15680:2003(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

©  ISO 2003
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2003 — All rights reserved

ISO 15680:2003(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references. 1
3 Terms and definitions. 2
4 Principle. 2
5 Interferences. 3
6 Reagents. 4
7 Apparatus. 7
8 Sample collection, preservation and preparation . 8
9 Analytical procedure. 9
10 Calibration. 11
11 Calculation. 12
12 Expression of results. 12
13 Precision data. 12
14 Test report. 12
Annex A (informative) Application of purge-and-trap concentration to the GC analysis of volatile
compounds in water — Example 1: Validation study in the UK. 14
Annex B (informative) Application of purge-and-trap concentration to the GC-analysis of volatile
compounds in water — Example 2: Data provided by DIN. 19
Annex C (informative) Application of purge-and-trap concentration to the GC-analysis of volatile
compounds in water — Example 3: Validation study in the Netherlands. 22
Annex D (normative) Criteria for the GC-MS identification of target compounds. 25
Annex E (informative) Procedures for the cleaning of glassware and the preparation of
contaminant-free water. 28
Annex F (informative) Preparation of standard solutions of volatile organic compounds . 30
Annex G (informative) Determination of the (absolute) recovery of substances analysed by
purge-and-trap concentration. 32
Bibliography . 33

ISO 15680:2003(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.
ISO 15680 was prepared by Technical Committee ISO/TC 147, Water quality, Subcommittee SC 2, Physical,
chemical and biochemical methods.

iv © ISO 2003 — All rights reserved

INTERNATIONAL STANDARD ISO 15680:2003(E)

Water quality — Gas-chromatographic determination of a
number of monocyclic aromatic hydrocarbons, naphthalene
and several chlorinated compounds using purge-and-trap and
thermal desorption
WARNING — Persons using this International Standard should be familiar with normal laboratory
practice. This International Standard does not purport to address all of the safety problems, if any,
associated with its use. It is the responsibility of the user to establish appropriate safety and health
practices and to ensure compliance with any national regulatory conditions.
1 Scope
This International Standard specifies a general method for the determination of volatile organic compounds
(VOCs) in water by purge-and-trap isolation and gas chromatography (GC). Annexes A, B and C provide
examples of analytes that can be determined using this International Standard. They range from
difluorodichloromethane (R-12) up to trichlorobenzene, including all non-polar organic compounds of
intermediate volatility.
Detection is preferably carried out by mass spectrometry in the electron impact mode (EI), but other detectors
may be applied as well.
The limit of detection largely depends on the detector in use and the operational parameters. Typically
1)
detection limits as low as 10 ng/l can be achieved. The working range typically is up to 100 µg/l.
This International Standard is applicable to drinking water, ground water, surface water, seawater and to
(diluted)
...