IEC 60867:2022

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
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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

– 2 – IEC 60867:2022 © IEC 2022
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

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

– 4 – IEC 60867:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSULATING LIQUIDS – SPECIFICATIONS FOR UNUSED LIQUIDS
BASED ON SYNTHETIC AROMATIC HYDROCARBONS

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