SIST EN IEC 60867:2023

SLOVENSKI STANDARD
SIST EN IEC 60867:2023
01-maj-2023
Nadomešča:
SIST EN 60867:1997
Izolacijske tekočine - Specifikacije za neuporabljene tekočine na podlagi
sintetičnih aromatskih ogljikovodikov
Insulating liquids - Specifications for unused liquids based on synthetic aromatic
hydrocarbons
Isolierflüssigkeiten - Bestimmungen für ungebrauchte Isolierflüssigkeiten auf Basis
synthetischer aromatischer Kohlenwasserstoffe
Isolants liquides - Spécifications pour liquides neufs à base d'hydrocarbures aromatiques
de synthèse
Ta slovenski standard je istoveten z: EN IEC 60867:2022
ICS:
29.040.10 Izolacijska olja Insulating oils
SIST EN IEC 60867:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 60867:2023

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SIST EN IEC 60867:2023


EUROPEAN STANDARD EN IEC 60867

NORME EUROPÉENNE

EUROPÄISCHE NORM December 2022
ICS 29.040.10 Supersedes EN 60867:1994
English Version
Insulating liquids - Specifications for unused liquids based on
synthetic aromatic hydrocarbons
(IEC 60867:2022)
Isolants liquides - Spécifications pour les liquides neufs à lsolierflüssigkeiten - Anforderungen für ungebrauchte
base d'hydrocarbures aromatiques de synthèse Flüssigkeiten auf Basis synthetischer aromatischer
(IEC 60867:2022) Kohlenwasserstoffe
(IEC 60867:2022)
This European Standard was approved by CENELEC on 2022-12-02. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 60867:2022 E

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SIST EN IEC 60867:2023
EN IEC 60867:2022 (E)
European foreword
The text of document 10/1186/FDIS, future edition 3 of IEC 60867, prepared by IEC/TC 10 "Fluids for
electrotechnical applications" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 60867:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-09-02
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-12-02
document have to be withdrawn

This document supersedes EN 60867:1994 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC 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 committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60867:2022 was approved by CENELEC as a European
Standard without any modification.
2

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SIST EN IEC 60867:2023
EN IEC 60867:2022 (E)
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60156 - Insulating liquids - Determination of the - -
breakdown voltage at power frequency -
Test method
IEC 60247 - Insulating liquids - Measurement of relative EN 60247 -
permittivity, dielectric dissipation factor
(tan δ) and d.c. resistivity
IEC 60475 - Method of sampling insulating liquids EN IEC 60475 -
IEC 60628 - Gassing of insulating liquids under HD 488 S1 -
electrical stress and ionization
IEC 60666 - Detection and determination of specified EN 60666 -
additives in mineral insulating oils
IEC 60814 - Insulating liquids - Oil-impregnated paper EN 60814 -
and pressboard - Determination of water
by automatic coulometric Karl Fischer
titration
IEC 61619 - Insulating liquids - Contamination by EN 61619 -
polychlorinated biphenyls (PCBs) - Method
of determination by capillary column gas
chromatography
IEC 61620 - Insulating liquids - Determination of the EN 61620 -
dielectric dissipation factor by
measurement of the conductance and
capacitance - Test method
IEC 62021 series Insulating liquids - Determination of acidity EN 62021 series
IEC 62535 - Insulating liquids - Test method for EN 62535 -
detection of potentially corrosive sulphur in
used and unused insulating oil
ISO 2592 - Petroleum and related products - EN ISO 2592 -
Determination of flash point - Cleveland
open cup method (PMOC)
3

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SIST EN IEC 60867:2023
EN IEC 60867:2022 (E)
ISO 3016 - Petroleum and related products from EN ISO 3016 -
natural or synthetic sources -
Determination of pour point
ISO 3104 - Petroleum products - Transparent and EN ISO 3104 -
opaque liquids - Determination of kinematic
viscosity and calculation of dynamic
viscosity
ISO 3675 - Crude petroleum and liquid petroleum EN ISO 3675 -
products - Laboratory determination of
density - Hydrometer method
ISO 9562 - Water quality - Determination of EN ISO 9562 -
adsorbable organically bound halogens
(AOX)
ISO 12185 - Crude petroleum and petroleum products - EN ISO 12185 -
Determination of density - Oscillating U-
tube method
ASTM D 1275 - Standard Test Method for Corrosive Sulfur - -
in Electrical Insulating Oils
ASTM D 4929 - Standard Test Method for Determination of - -
Organic Chloride Content in Crude Oil
ASTM D 7042 - Standard Test Method for Dynamic - -
Viscosity and Density of Liquids by
Stabinger Viscometer (and the Calculation
of Kinematic Viscosity)
ASTM D 7536 - Standard Test Method for Chlorine in - -
Aromatics by Monochromatic Wavelength
Dispersive X-ray Fluorescence
Spectrometry
DIN 51353 - Testing of insulating oils; detection of - -
corrosive sulfur; Silver strip test

4

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SIST EN IEC 60867:2023




IEC 60867

®


Edition 3.0 2022-10




INTERNATIONAL



STANDARD




NORME


INTERNATIONALE
colour

inside










Insulating liquids – Specifications for unused liquids based on synthetic

aromatic hydrocarbons



Isolants liquides – Spécifications pour les liquides neufs à base d'hydrocarbures

aromatiques de synthèse
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 29.040.10 ISBN 978-2-8322-5901-6




Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN IEC 60867:2023
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CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Identification and general delivery requirements . 9
5 Sampling . 9
6 Test methods . 9
6.1 Appearance . 9
6.2 Density . 9
6.3 Kinematic viscosity . 9
6.4 Flash point . 9
6.5 Pour point . 9
6.6 Acidity . 9
6.7 Chlorine content. 10
6.8 Water content . 10
6.9 Corrosive and potentially corrosive sulphur . 10
6.10 Additives . 10
6.11 Breakdown voltage . 10
6.12 Dielectric dissipation factor and volume resistivity . 10
6.13 Gassing tendency . 10
6.14 Polychlorinated biphenyl (PCBs) content. 10
7 Specifications for capacitor and cable alkylbenzenes . 10
8 Specifications for capacitor alkyldiphenylethanes . 10
9 Specifications for capacitor alkylnaphthalenes . 11
10 Specifications for capacitor methylpolyarylmethanes . 11
Annex A (informative) Test method for determination of chlorine content . 15
A.1 Test method for determination of total chloride . 15
A.1.1 Reagents . 15
A.1.2 Apparatus . 15
A.1.3 Procedure . 15
A.1.4 Calculation . 16
A.2 Test method for determination of organic chloride . 16
Annex B (informative) IR spectra of typical synthetic aromatic hydrocarbons . 17
B.1 IR spectra typical of the family of alkylbenzenes . 17
B.2 Alkyldiphenylethanes . 18
B.3 Alkylnaphtalenes – typified by 1-methylnaphthalene . 19
B.4 Methylpolyarylmethanes. 19
Bibliography . 21

Figure B.1 – IR spectra of branched alkylbenzenes . 17
Figure B.2 – IR spectra of linear alkylbenzenes . 18
Figure B.3 – IR spectrum of phenylxylylethane (PXE) . 18
Figure B.4 – IR spectrum of 1-methylnaphthalene . 19
Figure B.5 – IR spectrum of monobenzyltoluene (MBT) . 19

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SIST EN IEC 60867:2023
IEC 60867:2022 © IEC 2022 – 3 –
Figure B.6 – IR spectrum of dibenzyltoluene (DBT) . 20

Table 1 – Specifications for capacitor and cable alkylbenzenes . 12
Table 2 – Specifications for capacitor alkyldiphenylethanes and alkylnaphthalenes . 13
Table 3 – Specifications for capacitor methylpolyarylmethanes . 14

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

INSULATING LIQUIDS – SPECIFICATIONS FOR UNUSED LIQUIDS
BASED ON SYNTHETIC AROMATIC HYDROCARBONS

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 60867 has been prepared by IEC technical committee 10: Fluids for electrotechnical
applications. It is an International Standard.
This third edition cancels a replaces the second edition published in 1993. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) The Scope has been changed from applications in electrical equipment to applications
limited to cables and capacitors.
b) IEC 62021-1, IEC 62021-2 and IEC 62021-3 are all acceptable for synthetic aromatic
hydrocarbons and references to individual parts have been replaced by references to the
IEC 62021 series.

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SIST EN IEC 60867:2023
IEC 60867:2022 © IEC 2022 – 5 –
The text of this International Standard is based on the following documents:
Draft Report on voting
10/1186/FDIS 10/1188/RVD

Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The "colour inside" logo on the cover page of this document indicates that it
contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.

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INTRODUCTION
WARNING – Health and safety
This document does not purport to address all the safety problems associated with its use. It is
the responsibility of the user of this document to establish appropriate health and safety
practices and determine the applicability of regulatory limitations prior to use.
The synthetic aromatic hydrocarbon insulating liquids which are the subject of this document
should be handled with due regard to personal hygiene. Direct contact with the eyes can cause
irritation. In the case of eye contact, irrigation with copious quantities of clean running water
should be carried out and medical advice sought. Some of the tests specified in this document
involve the use of processes that could lead to a hazardous situation. Attention is drawn to the
relevant standard for guidance.
WARNING – Environment
This document is applicable to synthetic aromatic hydrocarbon insulating liquids, chemicals and
used sample containers. The disposal of these items can be subject to regulatory requirements
with regard to their impact on the environment. Every precaution should be taken to prevent
release of insulating liquids into the environment.

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SIST EN IEC 60867:2023
IEC 60867:2022 © IEC 2022 – 7 –
INSULATING LIQUIDS – SPECIFICATIONS FOR UNUSED LIQUIDS
BASED ON SYNTHETIC AROMATIC HYDROCARBONS



1 Scope
This document covers specifications and test methods for unused synthetic aromatic
hydrocarbons intended for use as insulating liquid in cables and capacitors.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60156, Insulating liquids – Determination of the breakdown voltage at power frequency –
Test method
IEC 60247, Insulating liquids – Measurement of relative permittivity, dielectric dissipation factor
(tanδ) and d.c. resistivity
IEC 60475, Method of sampling insulating liquids
IEC 60628, Gassing of insulating liquids under electrical stress and ionization
IEC 60666, Detection and determination of specified additives in mineral insulating oils
IEC 60814, Insulating liquids – Oil-impregnated paper and pressboard – Determination of water
by automatic coulometric Karl Fischer titration
IEC 61619, Insulating liquids – Contamination by polychlorinated biphenyls (PCBs) – Method
of determination by capillary column gas chromatography
IEC 61620, Insulating liquids – Determination of the dielectric dissipation factor by
measurement of the conductance and capacitance – Test method
IEC 62021 (all parts), Insulating liquids – Determination of acidity
IEC 62535, Insulating liquids – Test method for detection potentially corrosive sulphur in used
and unused insulating oil
ISO 2592, Petroleum and related products – Determination of flash point – Cleveland open cup
method (PMOC)
ISO 3016, Petroleum and related products from natural or synthetic sources – Determination of
pour point
ISO 3104, Petroleum products – Transparent and opaque liquids – Determination of kinematic
viscosity and calculation of dynamic viscosity
ISO 3675, Crude petroleum and liquid petroleum products – Laboratory determination of density
– Hydrometer method

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ISO 9562, Water quality – Determination of adsorbable organically bound halogens (AOX)
ISO 12185, Crude petroleum and petroleum products – Determination of density – Oscillating
U-tube method
ASTM D1275, Standard test method for corrosive sulfur in electrical insulating liquids
ASTM D4929, Standard Test Method for Determination of Organic Chloride Content in Crude
Oil
ASTM D7042, Standard Test Method for Dynamic Viscosity and Density of Liquids by Stabinger
Viscometer (and the Calculation of Kinematic Viscosity)
ASTM D7536, Standard Test Method for Chlorine in Aromatics by Monochromatic Wavelength
Dispersive X-ray Fluorescence Spectrometry
DIN 51353, Testing of insulating oils; detection of corrosive sulfur; Silver strip test
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
alkylbenzenes
insulating liquids consisting of a benzene ring and an alkyl group where the alkyl group can be
a straight chain or a branched-chain type
Note 1 to entry: Examples of IR spectra are given in Annex B.
3.2
alkyldiphenylethanes
insulating liquids consisting of diphenylethanes derivatives where the two aryl groups normally
carry short alkyl groups
Note 1 to entry: Examples of IR spectra are given in Annex B.
3.3
alkylnaphthalenes
insulating liquids consisting of a naphthalene structure with substituent alkyl groups
Note 1 to entry: Examples of IR spectra are given in Annex B.
3.4
methylpolyarylmethanes
insulating liquids consisting of methylpolyarylm ethanes derivatives mainly based on a blend of
mono/di-benzyl toluene (M/DBT)
Note 1 to entry: Examples of IR spectra are given in Annex B.

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IEC 60867:2022 © IEC 2022 – 9 –
4 Identification and general delivery requirements
Identification and general delivery requirements are as follows:
a) The synthetic aromatic hydrocarbons type of liquid is normally delivered in bulk, rail-tank
cars, tank containers or packed in drums or intermediate bulk containers (IBC). These shall
be clean and suitable for this purpose to avoid any contamination. The supplier shall take
all the precautions to ensure the delivery product will be in accordance with the requirements
of this document.
b) Drums and sample containers shall carry at least the following markings:
– supplier's designation;
– labelling in accordance with the Globally Harmonized System of Classification and
Labelling of Chemicals (GHS);
– liquid quantity.
c) As agreed between the supplier and purchaser each liquid delivery shall be accompanied
by a document specifying the supplier’s designation, labelling and compliance certificate. A
delivery shall be traceable to a manufactured batch.
d) The supplier shall declare the generic type of all additives, and the concentrations in the
case of antioxidants and passivators.
5 Sampling
Sampling shall be carried out in accordance with the procedure described in IEC 60475.
6 Test methods
6.1 Appearance
Appearance shall be evaluated by examining, in transmitted light, a representative sample of
the liquid having a thickness of approximately 10 cm, at ambient temperature.
6.2 Density
Density shall be measured in accordance with ISO 12185 (reference method). ISO 3675 and
ASTM D7042 are acceptable.
6.3 Kinematic viscosity
Kinematic viscosity shall be measured according to ISO 3104 (reference method) or ASTM
D7042.
6.4 Flash point
Flash point shall be determined according to ISO 2592.
6.5 Pour point
Pour point shall be determined according to ISO 3016.
6.6 Acidity
Acidity shall be measured according to the IEC 62021 series. Any part of the IEC 62021 series
(IEC 62021-1 or IEC 62021-2 or IEC 62021-3) can be used.

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6.7 Chlorine content
Chlorine content shall be determined using a test method according to ISO 9562 for the
determination of adsorbable organically bound halogens (AOX) or ASTM D4929 for the
determination of organic chloride content in crude oil or ASTM D7536 for the determination of
chlorine in aromatics by monochromatic wavelength dispersive X-ray fluorescence
spectrometry. The method described in Annex A can also be used.
6.8 Water content
Water content shall be determined according to IEC 60814.
6.9 Corrosive and potentially corrosive sulphur
Corrosive and potentially corrosive sulphur shall be determined according to DIN 51353 and
ASTM D1275 and IEC 62535.
6.10 Additives
The chemical family of all additives shall be declared in product data sheets and certificates of
compliance. For antioxidant additives and passivators (IEC 60666), their concentrations shall
also be stated.
6.11 Breakdown voltage
Breakdown voltage shall be determined according to IEC 60156.
6.12 Dielectric dissipation factor and volume resistivity
The properties shall be determined according to IEC 60247 (reference method) or IEC 61620.
6.13 Gassing tendency
The gassing shall be determined by Method A of IEC 60628.
NOTE Synthetic aromatic hydrocarbon compositions have been used as additive to improve the gassing tendency
of insulating liquids.
6.14 Polychlorinated biphenyl (PCBs) content
Synthetic aromatic hydrocarbons shall be free from PCBs. The reference test method is
IEC 61619.
NOTE Acceptable limits of total or individual PCBs are specified in national and local regulations. Further European
specifications are described in Directive 96/59/EC and UN Guidelines for the identification of PCBs and materials
containin
...