EN ISO 787-28:2020

SLOVENSKI STANDARD
01-december-2020
Splošne preskusne metode za pigmente in polnila - 28. del: Določevanje celotnih
polikloriranih bifenilov (PCB) z raztapljanjem, čiščenjem in plinsko kromatografijo
z masno selektivnim detektorjem (GC-MS) (ISO 787-28:2019)
General methods of tests for pigments and extenders - Part 28: Determination of total
content of polychlorinated biphenyls (PCB) by dissolution, cleanup and GC-MS (ISO 787
-28:2019)
Allgemeine Prüfverfahren für Pigmente und Füllstoffe - Teil 28: Bestimmung des
Gesamtgehalts an polychlorierten Biphenylen in organischen Pigmenten durch
Auflösung, Reinigung und GC/MS (ISO 787-28:2019)
Méthodes générales d'essai des pigments et matières de charge - Partie 28:
Détermination de la teneur totale en biphényles polychlorés dans les pigments
organiques par dissolution, purification et CG-SM (ISO 787-28:2019)
Ta slovenski standard je istoveten z: EN ISO 787-28:2020
ICS:
71.040.50 Fizikalnokemijske analitske Physicochemical methods of
metode analysis
87.060.10 Pigmenti in polnila Pigments and extenders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 787-28
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2020
EUROPÄISCHE NORM
ICS 87.060.10
English Version
General methods of tests for pigments and extenders - Part
28: Determination of total content of polychlorinated
biphenyls (PCB) by dissolution, cleanup and GC-MS (ISO
787-28:2019)
Méthodes générales d'essai des pigments et matières Allgemeine Prüfverfahren für Pigmente und Füllstoffe -
de charge - Partie 28: Détermination de la teneur totale Teil 28: Bestimmung des Gesamtgehalts an
en biphényles polychlorés dans les pigments polychlorierten Biphenylen (PCB) durch Auflösung,
organiques par dissolution, purification et CG-SM (ISO Reinigung und GC/MS (ISO 787-28:2019)
787-28:2019)
This European Standard was approved by CEN on 28 September 2020.

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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 787-28:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 787-28:2019 has been prepared by Technical Committee ISO/TC 256 "Pigments,
dyestuffs and extenders” of the International Organization for Standardization (ISO) and has been taken
over as EN ISO 787-28:2020 by Technical Committee CEN/TC 298 “Pigments and extenders” 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 April 2021, and conflicting national standards shall be
withdrawn at the latest by April 2021.
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.
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 787-28:32018 has been approved by CEN as EN ISO 787-28:2020 without any
modification.
INTERNATIONAL ISO
STANDARD 787-28
First edition
2019-05
General methods of tests for pigments
and extenders —
Part 28:
Determination of total content of
polychlorinated biphenyls (PCB) by
dissolution, cleanup and GC-MS
Méthodes générales d'essai des pigments et matières de charge —
Partie 28: Détermination de la teneur totale en biphényles polychlorés
dans les pigments organiques par dissolution, purification et CG-SM
Reference number
ISO 787-28:2019(E)
©
ISO 2019
ISO 787-28:2019(E)
© ISO 2019
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.
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Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 787-28:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Sampling . 2
6 Procedure. 2
6.1 General . 2
6.2 Clean-up to eliminate interfering species . 3
6.3 Separation and quantification . 3
7 Reagents . 3
7.1 Safety precautions . 3
7.2 Reagents, solvents and absorbents. 4
7.3 Internal reference materials for PCBs, 13C12-labelled . 5
7.4 Cleaning/disposal agents . 5
8 Apparatus . 5
9 Procedure. 6
9.1 Preparation of test sample . 6
9.2 Liquid-liquid extraction . 7
9.2.1 Separation funnel . 7
9.2.2 Ludwig extraction . 8
9.3 Clean-up . 8
9.3.1 General. 8
9.3.2 Diatomaceous earth-sulfuric acid column (optional) . 8
9.3.3 Gel permeation (size exclusion) chromatography/porous styrene
divinylbenzene beads-column (optional) . 9
9.3.4 Multilayer columns (obligatory) .10
9.3.5 Alumina column (optional) .11
9.4 Preparation of GC solution and GC procedure .11
9.5 Calculation and quantitation procedure .12
10 Test report .14
Annex A (informative) Nomenclature of PCBs .15
Bibliography .21
ISO 787-28:2019(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
a
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